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[Korean]
Planetary Ball Mill Process in Aspect of Milling Energy
Huynh Xuan Khoa, Sunwoo Bae, Sangwon Bae, Byeong-woo Kim, Ji Soon Kim
J Korean Powder Metall Inst. 2014;21(2):155-164.   Published online April 1, 2014
DOI: https://doi.org/10.4150/KPMI.2014.21.2.155
  • 6,424 View
  • 370 Download
  • 39 Citations
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Citations

Citations to this article as recorded by  
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    Zhongjia Gao, Jinzhao Fu, Chinmoy Podder, Xiangtao Gong, Yan Wang, Heng Pan
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  • Towards a More Sustainable Leaching Process for Li-Ion Battery Cathode Material Recycling: Mechanochemical Leaching of LiCoO2 Using Citric Acid
    Joshua Vauloup, Cécile Bouilhac, Nicolas Coppey, Patrick Lacroix-Desmazes, Lorenzo Stievano, Laure Monconduit, Moulay Tahar Sougrati
    ACS Sustainable Resource Management.2024; 1(9): 2032.     CrossRef
  • Conduction mechanism of a moisture diffusion energy harvesting device prepared with mesopore-rich activated carbon
    Sa-Myeong Gim, Sadaf Mearaj, Hyeonoh Hwang, Xuanjun Jin, Joon Weon Choi
    Materials Today Communications.2024; 40: 109743.     CrossRef
  • Toksik organik kirleticilerin mekanokimyasal parçalanması
    Volkan Pelitli
    Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi.2024; 26(2): 635.     CrossRef
  • Navigating Ball Mill Specifications for Theory‐to‐Practice Reproducibility in Mechanochemistry
    Orein F. Jafter, Sol Lee, Jongseong Park, Clément Cabanetos, Dominik Lungerich
    Angewandte Chemie International Edition.2024;[Epub]     CrossRef
  • Advancing sustainable practices in Li-ion battery cathode material recycling: mechanochemical optimisation for magnetic cobalt recovery
    Joshua Vauloup, Cécile Bouilhac, Nicolas Coppey, Patrick Lacroix-Desmazes, Bernard Fraisse, Lorenzo Stievano, Laure Monconduit, Moulay Tahar Sougrati
    RSC Mechanochemistry.2024; 1(4): 393.     CrossRef
  • Ultrafine Sm2Fe17N3 hard magnetic particles synthesized by mechanochemical process
    Zhi Yang, Yuanyuan Chen, Haochuan Yang, Xiaofeng Nie, Junhua Xi, Jie Zhang, Weiqiang Liu, Ming Yue
    Applied Materials Today.2024; 41: 102453.     CrossRef
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    Orein F. Jafter, Sol Lee, Jongseong Park, Clément Cabanetos, Dominik Lungerich
    Angewandte Chemie.2024;[Epub]     CrossRef
  • Optimizing reuse of Vanadis® 8 tool steel powders through multi-objective Lichtenberg algorithm: A powder metallurgy approach
    Elioenai Levi Barbedo, João Luiz Junho Pereira, Lucas Antônio de Oliveira, Matheus David Guimarães Barbedo, Matheus Brendon Francisco, Guilherme Ferreira Gomes, Gilbert Silva
    Advanced Powder Technology.2024; 35(4): 104416.     CrossRef
  • Solution-Free Growth of CsPbBr3 Perovskite Films Using a Fast and Scalable Close Space Sublimation Method
    Jakob Ihrenberger, Frédéric Roux, Ferdinand Lédée, Fabrice Emieux, Christelle Anglade, Thibault Lemercier, Géraldine Lorin, Eric Gros-Daillon, Louis Grenet
    Crystal Growth & Design.2024; 24(13): 5542.     CrossRef
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    Stefano Martelli, Paolo Emilio Di Nunzio
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  • Recent advances in the application of dolomite in membrane separation and beyond: A review on an abundant and versatile mineral
    Muhammed Sahal Siddique, N Awanis Hashim, Mohd Usman Mohd Junaidi, Aubaid Ullah, Rozita Yusoff, Mohamad Fairus Rabuni
    Materials Today Sustainability.2024; 28: 100951.     CrossRef
  • Wet mechanochemical surface modification of calcite employing an integration of conventional design and analytical hierarchy process
    Metin Uçurum, Akın Özdemir
    Powder Technology.2024; 443: 119970.     CrossRef
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    Materialia.2024; 38: 102249.     CrossRef
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    Advanced Powder Technology.2022; 33(10): 103751.     CrossRef
  • Comparison study of physicochemical and biopharmaceutics properties of hydrophobic drugs ground by two dry milling processes
    M. Dandignac, S. P. Lacerda, A. Chamayou, L. Galet
    Pharmaceutical Development and Technology.2022; 27(7): 816.     CrossRef
  • Effects of two-step high-energy ball milling process and hot isostatic pressing on the mechanical properties of PM magnesium
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  • Microstructural Design of Ba0.5La0.5Co0.5Fe0.5O3 Perovskite Ceramics
    Daria Gierszewska, Iga Szpunar, Francis Oseko, Joanna Pośpiech, Małgorzata Nadolska, Martyna Pieragowska, Karolina Reniecka, Kinga Waniek, Karol Leszczyński, Aleksandra Mielewczyk-Gryń, Maria Gazda, Sebastian Wachowski
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  • Key Factors During the Milling Stage of the Seed‐assisted and Solvent‐free Synthesis of MFI and Catalytic Behavior in the Alkylation of Phenol with Tert‐butyl Alcohol
    Julieth Tatiana García‐Sánchez, Iván Darío Mora‐Vergara, Daniel Ricardo Molina‐Velasco, José Antonio Henao‐Martínez, Víctor Gabriel Baldovino‐Medrano
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  • Nanocellulose acetate membranes: Preparation and application
    Ahmed S. Al-Rawi, Ismail K. Ibrahim Al-Khateeb, Tahseen A. Zaidan
    Environmental Nanotechnology, Monitoring & Management.2021; 16: 100529.     CrossRef
  • Mechanochemical tuning of molecular weight distribution of styrene homopolymers as postpolymerization modification in solvent‐free solid‐state
    Milton Jimenez‐Francisco, Jose Gonzalo Carrillo, Luis Alfonso Garcia‐Cerda
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    IOP Conference Series: Materials Science and Engineering.2020; 862(2): 022057.     CrossRef
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  • Kalsiyum oksit varlığında teknik hegzaklorosiklohegzan’nın mekanokimyasal parçalanması
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Article image
[English]
Processing Methods for the Preparation of Porous Ceramics
Rizwan Ahmad, Jang-Hoon Ha, In-Hyuck Song
J Korean Powder Metall Inst. 2014;21(5):389-398.   Published online October 1, 2014
DOI: https://doi.org/10.4150/KPMI.2014.21.5.389
  • 3,163 View
  • 102 Download
  • 22 Citations
AbstractAbstract PDF

Macroporous ceramics with tailored pore size and shape could be used for well-established and emerging applications, such as molten metal filtration, biomaterial, catalysis, thermal insulation, hot gas filtration and diesel particulate filters. In these applications, unique properties of porous materials were required which could be achieved through the incorporation of macro-pores into ceramics. In this article, we reviewed the main processing techniques which can be used for the fabrication of macroporous ceramics with tailored microstructure. Partial sintering, replica templates, sacrificial fugutives, and direct foaming techniques was described here and compared in terms of micro-structures and mechanical properties that could be achieved. The main focus was given to the direct foaming technique which was simple and versatile approach that allowed the fabrication of macro-porous ceramics with tailored features and properties.

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Article image
[Korean]
Fabrication and Properties of Alloy Foam Materials using Metal Powders
James Choi, Ku-Hwan Kim
J Korean Powder Metall Inst. 2010;17(6):489-493.
DOI: https://doi.org/10.4150/KPMI.2010.17.6.489
  • 622 View
  • 8 Download
  • 15 Citations
AbstractAbstract PDF
Nickel-based and iron-based alloys have been developed and commercialized for a wide range of high performance applications at severely corrosive and high temperature environment. This alloy foam has an outstanding performance which is predestinated for diesel particulate filters, heat exchangers, and catalyst support, noise absorbers, battery, fuel cell, and flame distributers in burners in chemical and automotive industry. Production of alloy foam starts from high-tech coating technology and heat treatment of transient liquid-phase sintering in the high temperature. These technology allow for preparation of a wide variety of foam compositions such as Ni, Cr, Al, Fe on various pore size of pure nickel foam or iron foam in order for tailoring material properties to a specific application.

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    Noh-Geon Song, So-Yeon Park, Jung-Yeul Yun, Ju-Yong Kim, Kee-Ahn Lee
    Journal of Materials Research and Technology.2025; 36: 8219.     CrossRef
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Article image
[Korean]
Overview and Future Concerns for Lithium-Ion Batteries Materials
Hang-Chul Jung, Geon-Hong Kim, Hyun-Seon Hong, Dong-Wan Kim
J Korean Powder Metall Inst. 2010;17(3):175-189.
DOI: https://doi.org/10.4150/KPMI.2010.17.3.175
  • 750 View
  • 11 Download
  • 14 Citations
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Citations

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    Haein Shin, Jongwon Bae, Minsu Kang, Kun-Jae Lee
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    Tae-Gyu Woo, Il-Song Park
    Korean Journal of Metals and Materials.2020; 58(1): 41.     CrossRef
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    Dae Weon Kim, Seong Tae Jang, Kyung Min Baek
    Journal of the Korean Institute of Resources Recycling.2013; 22(3): 43.     CrossRef
  • Industrial Supply Chain Trend of Domestic Tungsten
    Joon-Woo Song, Sang-Hyun Lee, Hyun-Seon Hong, Hong-Yoon Kang, Soon-Jik Hong
    Journal of Korean Powder Metallurgy Institute.2012; 19(1): 79.     CrossRef
  • Research and Development Status of Low-Cost Fe-based Cathode Materials for Lithium Secondary Batteries
    Hyun-Seon Hong, Young-Dae Ko, Lee-Seung Kang, Hang-Chul Jung, Geon-Hong Kim
    Journal of Korean Powder Metallurgy Institute.2011; 18(2): 196.     CrossRef
  • Preparation of the Nano Cobalt Powder by Wet Chemical Reduction Method
    Hyun-Seon Hong, Young-Dae Ko, Lee-Seung Kang, Geon-Hong Kim, Hang-Chul Jung
    Journal of Korean Powder Metallurgy Institute.2011; 18(3): 244.     CrossRef
Article
Article image
[Korean]
Effect of Porosity on Mechanical Anisotropy of 316L Austenitic Stainless Steel Additively Manufactured by Selective Laser Melting
Jeong Min Park, Jin Myoung Jeon, Jung Gi Kim, Yujin Seong, Sun Hong Park, Hyoung Seop Kim
J Korean Powder Metall Inst. 2018;25(6):475-481.   Published online December 1, 2018
DOI: https://doi.org/10.4150/KPMI.2018.25.6.475
  • 1,075 View
  • 12 Download
  • 12 Citations
AbstractAbstract PDF

Selective laser melting (SLM), a type of additive manufacturing (AM) technology, leads a global manufacturing trend by enabling the design of geometrically complex products with topology optimization for optimized performance. Using this method, three-dimensional (3D) computer-aided design (CAD) data components can be built up directly in a layer-by-layer fashion using a high-energy laser beam for the selective melting and rapid solidification of thin layers of metallic powders. Although there are considerable expectations that this novel process will overcome many traditional manufacturing process limits, some issues still exist in applying the SLM process to diverse metallic materials, particularly regarding the formation of porosity. This is a major processing-induced phenomenon, and frequently observed in almost all SLM-processed metallic components. In this study, we investigate the mechanical anisotropy of SLM-produced 316L stainless steel based on microstructural factors and highly-oriented porosity. Tensile tests are performed to investigate the microstructure and porosity effects on mechanical anisotropy in terms of both strength and ductility.

Citations

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  • Effect of temperature and impact loading condition on deformation behavior in 316L austenitic stainless steel manufactured by laser powder bed fusion
    Tae Hyeong Kim, Haeum Park, Jun Seok Lee, Jeong Min Park, Jae Wung Bae
    Materials Science and Engineering: A.2025; 933: 148286.     CrossRef
  • Selective laser melting additive manufactured H13 tool steel for aluminum extrusion die component construction
    Evangelos Giarmas, Vasileios Tsakalos, Emmanuel Tzimtzimis, Nikolaos Kladovasilakis, Ioannis Kostavelis, Dimitrios Tzovaras, Dimitrios Tzetzis
    The International Journal of Advanced Manufacturing Technology.2024; 133(9-10): 4385.     CrossRef
  • Nanoindentation Creep Behavior of Additively Manufactured H13 Steel by Utilizing Selective Laser Melting Technology
    Evangelos Giarmas, Emmanouil K. Tzimtzimis, Nikolaos Kladovasilakis, Dimitrios Tzovaras, Dimitrios Tzetzis
    Materials.2024; 17(15): 3756.     CrossRef
  • A Parametric Study on the L-PBF Process of an AlSi10Mg Alloy for High-Speed Productivity of Automotive Prototype Parts
    Yeonha Chang, Hyomoon Joo, Wanghyun Yong, Yeongcheol Jo, Seongjin Kim, Hanjae Kim, Yeon Woo Kim, Kyung Tae Kim, Jeong Min Park
    Journal of Powder Materials.2024; 31(5): 390.     CrossRef
  • Development of multi-defect diagnosis algorithm for the directed energy deposition (DED) process with in situ melt-pool monitoring
    Hyewon Shin, Jimin Lee, Seung-Kyum Choi, Sang Won Lee
    The International Journal of Advanced Manufacturing Technology.2023; 125(1-2): 357.     CrossRef
  • Corrosion Resistance of Laser Powder Bed Fused AISI 316L Stainless Steel and Effect of Direct Annealing
    Kichang Bae, Dongmin Shin, Jonghun Lee, Seohan Kim, Wookjin Lee, Ilguk Jo, Junghoon Lee
    Materials.2022; 15(18): 6336.     CrossRef
  • Experimental investigation on the effect of process parameters in additive/subtractive hybrid manufacturing 316L stainless steel
    Chengming Tang, Jibin Zhao, Zhiguo Wang, Yuhui Zhao, Tianran Wang
    The International Journal of Advanced Manufacturing Technology.2022; 121(3-4): 2461.     CrossRef
  • Interface characteristics and mechanical behavior of additively manufactured multi-material of stainless steel and Inconel
    Man Jae Sagong, Eun Seong Kim, Jeong Min Park, Gangaraju Manogna Karthik, Byeong-Joo Lee, Jung-Wook Cho, Chong Soo Lee, Takayoshi Nakano, Hyoung Seop Kim
    Materials Science and Engineering: A.2022; 847: 143318.     CrossRef
  • Effect of heat treatment on microstructural heterogeneity and mechanical properties of 1%C-CoCrFeMnNi alloy fabricated by selective laser melting
    Jeong Min Park, Eun Seong Kim, Hyeonseok Kwon, Praveen Sathiyamoorthi, Kyung Tae Kim, Ji-Hun Yu, Hyoung Seop Kim
    Additive Manufacturing.2021; 47: 102283.     CrossRef
  • Manufacturing Aluminum/Multiwalled Carbon Nanotube Composites via Laser Powder Bed Fusion
    Eo Ryeong Lee, Se Eun Shin, Naoki Takata, Makoto Kobashi, Masaki Kato
    Materials.2020; 13(18): 3927.     CrossRef
  • Effects of microstructure and internal defects on mechanical anisotropy and asymmetry of selective laser-melted 316L austenitic stainless steel
    Jin Myoung Jeon, Jeong Min Park, Ji-Hun Yu, Jung Gi Kim, Yujin Seong, Sun Hong Park, Hyoung Seop Kim
    Materials Science and Engineering: A.2019; 763: 138152.     CrossRef
  • Microstructural effects on the tensile and fracture behavior of selective laser melted H13 tool steel under varying conditions
    Jungsub Lee, Jungho Choe, Junhyeok Park, Ji-Hun Yu, Sangshik Kim, Im Doo Jung, Hyokyung Sung
    Materials Characterization.2019; 155: 109817.     CrossRef
Article image
[Korean]
Effect of Powder Characteristic and Freeze Condition on the Pore Characteristics of Porous W
Na-Yeon Kwon, Sung-Tag Oh
J Korean Powder Metall Inst. 2012;19(4):259-263.
DOI: https://doi.org/10.4150/KPMI.2012.19.4.259
  • 698 View
  • 1 Download
  • 12 Citations
AbstractAbstract PDF
Dependence of the freeze-drying process condition on microstructure of porous W and pore formation mechanism were studied. Camphene slurries with WO_3 contents of 10 vol% were prepared by milling at 50°C with a small amount of dispersant. Freezing of a slurry was done in Teflon cylinder attached to a copper bottom plate cooled at -25°C. Pores were generated subsequently by sublimation of the camphene during drying in air for 48 h. The green body was hydrogen-reduced at 800°C for 30 min, and sintered in the furnace at 900°C for 1 h. After heat treatment in hydrogen atmosphere, WO_3 powders were completely converted to metallic W without any reaction phases. The sintered samples showed large pores with the size of about 70µm which were aligned parallel to the camphene growth direction. Also, the internal wall of large pores and near bottom part of specimen had relatively small pores with dendritic structure due to the growth of camphene dendrite depending on the degree of nucleation and powder rearrangement in the slurry.

Citations

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  • Fabrication of Porous TiO2 with Aligned Pores Using Tert-Butyl Alcohol Based Freeze Casting
    Eui Seon Lee, Sung-Tag Oh
    Korean Journal of Metals and Materials.2024; 62(12): 929.     CrossRef
  • Fabrication of Porous W-Ti by Freeze-Drying and Hydrogen Reduction of WO3-TiH2 Powder Mixtures
    Hyunji Kang, Sung Hyun Park, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2017; 24(6): 472.     CrossRef
  • Synthesis of Aligned Porous Sn by Freeze-Drying of Tin Chloride/camphene Slurry
    수룡 방, 승탁 오
    Korean Journal of Materials Research.2015; 25(1): 27~31.     CrossRef
  • Effect of Sublimable Vehicle Compositions in the Camphor-NaphthaleneSystem on the Pore Structure of Porous Cu-Ni
    Na-Yeon Kwon, Myung-Jin Suk, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2015; 22(5): 362.     CrossRef
  • Porous Mo–30wt.% W alloys synthesized from camphene/MoO3–WO3 slurry by freeze drying and sintering process
    Ki Cheol Jeon, Beom Seok Kim, Young Do Kim, Myung-Jin Suk, Sung-Tag Oh
    International Journal of Refractory Metals and Hard Materials.2015; 53: 32.     CrossRef
  • Fabrication of Porous Cu-Ni by Freeze Drying and Hydrogen Reduction of CuO-NiO Powder Mixture
    Han Gil Seo, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2014; 21(1): 34.     CrossRef
  • Synthesis of porous Cu–Sn using freeze-drying process of CuO–SnO2/camphene slurries
    Sung-Tag Oh, Wonsuk Lee, Si Young Chang, Myung-Jin Suk
    Research on Chemical Intermediates.2014; 40(7): 2495.     CrossRef
  • Fabrication of Porous Cu by Freeze-drying Process of Camphene Slurry with CuO-coated Cu Powders
    Su-Ryong Bang, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2014; 21(3): 191.     CrossRef
  • Effect of Solidification Condition of Sublimable Vehicles on the Pore Characteristics in Freeze Drying Process
    Myung-Jin Suk, Ji Soon Kim, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2014; 21(5): 366.     CrossRef
  • Freeze Drying for Porous Mo with Sublimable Vehicles of Eutectic System
    Gyu-Tae Lee, Han Gil Seo, Myung-Jin Suk, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2013; 20(4): 253.     CrossRef
  • Synthesis of Porous Cu-Sn by Freeze Drying and Hydrogen Reduction Treatment of Metal Oxide Composite Powders
    Min-Sung Kim, Ho-Suk Yoo, Sung-Tag Oh, Chang-Yong Hyun
    Korean Journal of Materials Research.2013; 23(12): 722.     CrossRef
  • Fabrication of Porous Mo by Freeze-Drying and Hydrogen Reduction of MoO3/Camphene Slurry
    Wonsuk Lee, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2012; 19(6): 446.     CrossRef
Article image
[English]
Electroexplosive Technology of Nanopowders Production: Current Status and Future Prospects
Young-Soon Kwon, Jin-Chun Kim, Alexander P. Ilyin, Olga B. Nazarenko, Dmitry V. Tikhonov
J Korean Powder Metall Inst. 2012;19(1):40-48.
DOI: https://doi.org/10.4150/KPMI.2012.19.1.040
  • 685 View
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  • 11 Citations
AbstractAbstract PDF
The current situation of the nanopowders production technology based on the process of electrical explosion of wires is described. The advantages and disadvantages of the electroexplosive technology are indicated. The results of studies characterizing the effect of the electrical explosion conditions on the nanopowders properties are presented, including latest results: conditions of nanopowders passivation, conditions of nanopowders production having narrow size distribution, the methods of nanopowders diagnostic and standartization. In addition, the application and area of future research on this technology are proposed.

Citations

Citations to this article as recorded by  
  • Characterization of Naturally Aged Iron Nanopowder Produced by Electrical Explosion of Wires
    Olga B. Nazarenko, Alexander I. Sechin, Yuliya A. Amelkovich
    Metals and Materials International.2021; 27(5): 962.     CrossRef
  • Development of Effectual Substrates for SERS by Nanostructures-on flexible surfaces
    Hammad R. Humud, Fatimah Jumaah Moaen
    Journal of Physics: Conference Series.2021; 2114(1): 012084.     CrossRef
  • Influence of Factors Affecting the Parameters of Combustion of Aluminum Nanopowders in the Bulk Layer
    Alexander I. Sechin, Olga B. Nazarenko, Yuliya A. Amelkovich, Andrey A. Sechin
    Materials Science Forum.2019; 970: 257.     CrossRef
  • Effect of electron beam irradiation on thermal and mechanical properties of aluminum based epoxy composites
    P.M. Visakh, O.B. Nazarenko, C. Sarath Chandran, T.V. Melnikova, S.Yu. Nazarenko, J.-C. Kim
    Radiation Physics and Chemistry.2017; 136: 17.     CrossRef
  • Investigation of coatings produced by the electrospark machining method of steel 45 with electrodes based on carbides of tungsten and titanium
    S. V. Nikolenko, N. A. Syui
    Protection of Metals and Physical Chemistry of Surfaces.2017; 53(5): 889.     CrossRef
  • Influence of long-term storage on fire hazard properties of metal nanopowders
    O S Kyrmakova, A I Sechin, O B Nazarenko
    Journal of Physics: Conference Series.2017; 881: 012027.     CrossRef
  • A Study of the Preparation and Properties of Antioxidative Copper Inks with High Electrical Conductivity
    Chia-Yang Tsai, Wei-Chen Chang, Guan-Lin Chen, Cheng-Huan Chung, Jun-Xiang Liang, Wei-Yang Ma, Tsun-Neng Yang
    Nanoscale Research Letters.2015;[Epub]     CrossRef
  • Characterization of copper nanopowders after natural aging
    Yu A Amelkovich, O B Nazarenko, A I Sechin, P M Visakh
    IOP Conference Series: Materials Science and Engineering.2015; 81: 012072.     CrossRef
  • Characterization of aluminum nanopowders after long-term storage
    O.B. Nazarenko, Yu.A. Amelkovich, A.I. Sechin
    Applied Surface Science.2014; 321: 475.     CrossRef
  • Effect of the Gas Composition at the Electrical Explosion of Wires on the Nanopowders Properties
    Olga B. Nazarenko, Alexander P. Ilyin, Dmitry V. Tikhonov
    Advanced Materials Research.2013; 872: 142.     CrossRef
  • Prospects of Using Nanopowders as Flame Retardant Additives
    Olga B. Nazarenko, Yulia A. Amelkovich, Alexander P. Ilyin, Alexander I. Sechin
    Advanced Materials Research.2013; 872: 123.     CrossRef
Article image
[English]
Mechanical Alloying and Milling
C. Suryanarayana, In-Seop An
J Korean Powder Metall Inst. 2006;13(5):371-372.
DOI: https://doi.org/10.4150/KPMI.2006.13.5.371
  • 848 View
  • 23 Download
  • 11 Citations
PDF

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  • Lemon extract supported green synthesis of bimetallic CuO/Ag nanoporous materials for sensitive detection of vitamin D3
    Gowhar A. Naikoo, Fay M. Almashali, Fatima A. S. Habis, Mustri Bano, Jahangir Ahmad Rather, Israr U. Hassan, Rayees Ahmad Sheikh, Palanisamy Kannan, Iman M. Alfagih, Murtaza M. Tambuwala
    Scientific Reports.2023;[Epub]     CrossRef
  • Mechanochemical Synthesis of PZT Powders and the Effects of Mechanical Activation on Solid-State Sintering Kinetics
    Bijesh Mehta, C. Sasikumar
    Transactions of the Indian Institute of Metals.2023; 76(3): 849.     CrossRef
  • Effect of Process Control Agent on Microstructures and High-Temperature Oxidation Behavior of a Nickel-Based ODS Alloy
    Zhe Mao, Jing Li, Shi Liu, Liangyin Xiong
    Metals.2022; 12(6): 1029.     CrossRef
  • Synthesis of Fe–Al Intermetallic by Mechanical Alloying Process
    Vivek Kumar Jain, Manoj Kumar Yadav, Arshad Noor Siddiquee, Zahid Akhtar Khan, Chaitanya Sharma
    Journal of The Institution of Engineers (India): Series D.2022; 103(2): 621.     CrossRef
  • Approaches on Ferrofluid Synthesis and Applications: Current Status and Future Perspectives
    Oscar Oehlsen, Sussy I. Cervantes-Ramírez, Pabel Cervantes-Avilés, Illya A. Medina-Velo
    ACS Omega.2022; 7(4): 3134.     CrossRef
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    Marcelo Augusto Malagutti, Vagner Zeizer Carvalho Paes, Julian Geshev, Carlos Eduardo Maduro de Campos
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    Sukanto, Wahyono Suprapto, Rudy Soenoko, Yudy Surya Irawan
    EUREKA: Physics and Engineering.2022; (1): 103.     CrossRef
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    J. M. Mendoza-Duarte, F. C. Robles-Hernandez, E. Rocha-Rangel, Y. Todaka, N. Adachi, I. Estrada-Guel, C. G. Garay-Reyes, M. A. Ruiz Esparza-Rodríguez, R. Martínez-Sánchez
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  • Effect of the route and sintering time in the microstructure of pure aluminum prepared by high energy ball milling
    José Mendoza, C. Carreño-Gallardo, I. Estrada-Guel, C.G. Garay-Reyes, M.A. Ruiz-Esparza-Rodriguez, G. Rodríguez-Cabriales, J.C Guía-Tello, R. Martínez-Sánchez
    Microscopy and Microanalysis.2021; 27(S1): 3294.     CrossRef
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    Vivek Kumar Jain, Manoj Kumar Yadav, Arshad Noor Siddiquee, Zahid A. Khan
    Material Science, Engineering and Applications.2021; 1(2): 55.     CrossRef
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Article image
[English]
Synthesis and Compaction of Al-based Nanopowders by Pulsed Discharge Method
Chang-Kyu Rhee, Geun-Hee Lee, Whung-Whoe Kim
J Korean Powder Metall Inst. 2002;9(6):433-440.
DOI: https://doi.org/10.4150/KPMI.2002.9.6.433
  • 637 View
  • 2 Download
  • 11 Citations
AbstractAbstract PDF
Synthesis and compaction of Al-base nano powders by pulsed discharge method were investigated. The aluminum based powders with 50 to 200 nm of diameter were produced by pulsed wire evaporation method. The powders were covered with very thin oxide layer. The perspective process for the compaction and sintering of nanostructured metal-based materials stable in a wide temperature range can be seen in the densification of nano-sized metal powders with uniformly distributed hard ceramic particles. The promising approach lies in utilization of natural uniform mixtures of metal and ceramic phases, e.g. partially oxidized metal powders as fabricated in our synthesis method. Their particles consist of metal grains coated with oxide films. To construct a metal-matrix material from such powder, it is necessary to destroy the hard oxide coatings of particles during the compaction process. This goal was realized in our experiments with intensive magnetic pulsed compaction of aluminum nanopowders passivated in air.

Citations

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    L. Santhosh Kumar, S.R. Chakravarthi, R. Sarathi, R. Jayaganthan
    Journal of Materials Research.2017; 32(4): 897.     CrossRef
  • Electrochemical properties of Sn/C nanoparticles fabricated by redox treatment and pulsed wire evaporation method
    Ju-Seok Song, Gyu-Bong Cho, Jou-Hyeon Ahn, Kwon-Koo Cho
    Applied Surface Science.2017; 415: 14.     CrossRef
  • Investigation of Nano-Molybdenum Carbide Particle Produced by Wire-Explosion Process
    Ramanujam Sarathi, Ravula Sugunakar Reddy, Rashmi S. Tavarmani, Akira Okamoto, Hisayuki Suematsu, Parasuraman Selvam, Uthandi Kamachi Mudali, Muthusamy Kamaraj
    IEEE Transactions on Plasma Science.2015; 43(10): 3470.     CrossRef
  • Synthesis and characterization of hexagonal nano tungsten carbide powder using multi walled carbon nanotubes
    S. Aravinth, Binu Sankar, M. Kamaraj, S.R. Chakravarthy, R. Sarathi
    International Journal of Refractory Metals and Hard Materials.2012; 33: 53.     CrossRef
  • Synthesis and characterization of copper nanoparticles by using the exploding wire method
    Rashmita Das, Basanta Kumar Das, Anurag Shyam
    Journal of the Korean Physical Society.2012; 61(5): 710.     CrossRef
  • Generation and characterization of nano-tungsten carbide particles by wire explosion process
    B. Debalina, M. Kamaraj, B.S. Murthy, S.R. Chakravarthi, R. Sarathi
    Journal of Alloys and Compounds.2010; 496(1-2): 122.     CrossRef
  • Understanding the mechanism of nano-aluminum particle formation by wire explosion process using optical emission technique
    Jobin K. Antony, Nilesh J. Vasa, S.R. Chakravarthy, R. Sarathi
    Journal of Quantitative Spectroscopy and Radiative Transfer.2010; 111(17-18): 2509.     CrossRef
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    T K Sindhu, R Sarathi, S R Chakravarthy
    Nanotechnology.2008; 19(2): 025703.     CrossRef
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    T. K. Sindhu, R. Sarathi, S. R. Chakravarthy
    Bulletin of Materials Science.2007; 30(2): 187.     CrossRef
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    R. Sarathi, T.K. Sindhu, S.R. Chakravarthy
    Materials Letters.2007; 61(8-9): 1823.     CrossRef
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    R. Sarathi, T.K. Sindhu, S.R. Chakravarthy
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Article
Article image
[English]
A Study on the Recovery of Li2CO3 from Cathode Active Material NCM(LiNiCoMnO2) of Spent Lithium Ion Batteries
Jei-Pil Wang, Jae-Jung Pyo, Se-Ho Ahn, Dong-Hyeon Choi, Byeong-Woo Lee, Dong-Won Lee
J Korean Powder Metall Inst. 2018;25(4):296-301.   Published online August 1, 2018
DOI: https://doi.org/10.4150/KPMI.2018.25.4.296
  • 2,842 View
  • 72 Download
  • 10 Citations
AbstractAbstract PDF

In this study, an experiment is performed to recover the Li in Li2CO3 phase from the cathode active material NMC (LiNiCoMnO2) in waste lithium ion batteries. Firstly, carbonation is performed to convert the LiNiO, LiCoO, and Li2MnO3 phases within the powder to Li2CO3 and NiO, CoO, and MnO. The carbonation for phase separation proceeds at a temperature range of 600°C~800°C in a CO2 gas (300 cc/min) atmosphere. At 600~700°C, Li2CO3 and NiO, CoO, and MnO are not completely separated, while Li and other metallic compounds remain. At 800 °C, we can confirm that LiNiO, LiCoO, and Li2MnO3 phases are separated into Li2CO3 and NiO, CoO, and MnO phases. After completing the phase separation, by using the solubility difference of Li2CO3 and NiO, CoO, and MnO, we set the ratio of solution (distilled water) to powder after carbonation as 30:1. Subsequently, water leaching is carried out. Then, the Li2CO3 within the solution melts and concentrates, while NiO, MnO, and CoO phases remain after filtering. Thus, Li2CO3 can be recovered.

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  • Hydrogen Reduction of Black Mass Recovered from NCM-based Spent Lithium-ion Batteries
    Jae-Ho Hwang, Sang-Yeop Lee, So-Yeong Lee, Ho-Sang Sohn
    Resources Recycling.2025; 34(3): 34.     CrossRef
  • Reduction Roasting of Cathode Materials of NCM Based Lithium-ion Batteries Using CH4(g)
    Jae-Ho Hwang, Sang-Yeop Lee, Ho-Sang Sohn
    Resources Recycling.2025; 34(4): 48.     CrossRef
  • High‐Rate Rechargeable Li/SOCl2 Batteries Enabled by Cobalt Phthalocyanine Cathodic Catalysts
    Yingxuan Song, Haibo Ouyang, Zhanwei Xu, Zeyang Zhang, Kang Li, Jianfeng Huang, Zhi Li, Tian Wang, Jun Yang
    Small.2025;[Epub]     CrossRef
  • Reduction Roasting of Black Mass Recovered from NCM-based Spent Lithium-ion Batteries Using CH4 Gas
    Sang-Yeop Lee, Jae-Ho Hwang, Ho-Sang Sohn
    Resources Recycling.2025; 34(5): 93.     CrossRef
  • Metals Recovery from Spent Lithium-ion Batteries Cathode Via Hydrogen Reduction-water Leaching-carbothermic or Hydrogen Reduction Process
    Tahereh Rostami, Behnam Khoshandam
    Mining, Metallurgy & Exploration.2024; 41(3): 1485.     CrossRef
  • Influence of Flow-Gas Composition on Reaction Products of Thermally Treated NMC Battery Black Mass
    Christin Stallmeister, Bernd Friedrich
    Metals.2023; 13(5): 923.     CrossRef
  • Holistic Investigation of the Inert Thermal Treatment of Industrially Shredded NMC 622 Lithium-Ion Batteries and Its Influence on Selective Lithium Recovery by Water Leaching
    Christin Stallmeister, Bernd Friedrich
    Metals.2023; 13(12): 2000.     CrossRef
  • Environmentally Friendly Recovery of Lithium from Lithium–Sulfur Batteries
    Lilian Schwich, Bernd Friedrich
    Metals.2022; 12(7): 1108.     CrossRef
  • Early-Stage Recovery of Lithium from Tailored Thermal Conditioned Black Mass Part I: Mobilizing Lithium via Supercritical CO2-Carbonation
    Lilian Schwich, Tom Schubert, Bernd Friedrich
    Metals.2021; 11(2): 177.     CrossRef
  • Exploring a green route for recycling spent lithium-ion batteries: Revealing and solving deep screening problem
    Jiadong Yu, Quanyin Tan, Jinhui Li
    Journal of Cleaner Production.2020; 255: 120269.     CrossRef
Article image
[English]
Effect of Passivation on the Sintering Behavior of Submicron Nickel Powder Compacts for MLCC Application
Gi-Young Jo, Kwi-Jong Lee, Suk-Joong L. Kang
J Korean Powder Metall Inst. 2013;20(6):405-410.
DOI: https://doi.org/10.4150/KPMI.2013.20.6.405
  • 785 View
  • 28 Download
  • 10 Citations
AbstractAbstract PDF
During sintering of Ni-electrode multi-layer ceramic capacitors (MLCCs), the Ni electrode often becomes discontinuous because of its lower sintering temperature relative to that of BaTiO_3. In an attempt to retard the sintering of Ni, we introduced passivation of the Ni powder. To find the optimal passivation conditions, a thermogravimetric analysis (TGA) was conducted in air. After passivation at 250°C for 11 h in air, a nickel oxide shell with a thickness of 4-5 nm was formed on nickel nanoparticles of 180 nm size. As anticipated, densification of the compacts of the passivated Ni/NiO core-shell powder was retarded: the starting temperature of densification increased from sim400°C to sim600°C in a 97N_2-3H_2 (vol %) atmosphere. Grain growth was also retarded during sintering at temperatures of 750 and 1000°C. When the sintering atmosphere was changed from wet 99.93N_2-0.07H_2 to wet 99.98N_2-0.02H_2, the average grain size decreased at the same sintering temperature. The conductivity of the passivated powder sample sintered at 1150°C for 8 h in wet 99.93N_2-0.07H_2 was measured to be 3.9times104S/cm, which is comparable with that, 4.6times104S/cm, of the Ni powder compact without passivation. These results demonstrate that passivation of Ni is a viable means of retarding sintering of a Ni electrode and hence improving its continuity in the fabrication of BaTiO_3-based multi-layer ceramic capacitors.

Citations

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  • In-situ Stress Analysis of Nickel Nanoparticle Sintering with Metal Additive in Multi-Layer Ceramic Capacitors
    Youngran Jung, Wonhyo Joo, Kyung Rul Lee, Cheol Kim, Min-Jung Choi, Young-Chang Joo, So-Yeon Lee
    Electronic Materials Letters.2025; 21(3): 464.     CrossRef
  • In-situ preparation of Ni@BaTiO3 nanocapsules for MLCCs by DC arc plasma
    Yi-Long Wang, Zhi-Dong Dai, Guang-Long Wei, Xi-Yang Li, Xing-Long Dong, Xing-Hao Qu, Youngguan Jung
    Journal of Alloys and Compounds.2025; 1037: 182251.     CrossRef
  • In-situ preparation of Ni@ZrO2 nanocapsules powder by DC arc plasma for internal electrode of MLCC
    Xi-Yang Li, Xing-Hao Qu, Dong Liu, Guang-Yun Zhu, Xing-Long Dong, Youngguan Jung
    Vacuum.2024; 224: 113130.     CrossRef
  • Effect of Sn addition on the low temperature shrinkage of Ni nanoparticles
    Jongwon Lee, Hyung-Ho Kim, Hyunwoong Na, Jeongryeol Kim, Seong-Hyeon Hong
    Ceramics International.2024; 50(4): 6793.     CrossRef
  • Synthesis of Ni@MgO core–shell ultrafine particles for the fabrication of thick film electrodes
    Liubin Shi, Hao Deng, Yuanzhi Chen, Shilong Xiong, Jindong Li, Dong-Liang Peng
    Advanced Powder Technology.2024; 35(10): 104642.     CrossRef
  • Effect of Adding W Nanopowder to Inhibit Sintering of Ni Nanopowder for MLCC
    Joonwoon Lee, Guensik Min, Sungmin Lee, Yunggyu Ann, Heung Nam Han
    Korean Journal of Metals and Materials.2024; 62(10): 777.     CrossRef
  • Research Trends on the Influence of Oxygen Vacancies in Post BaTiO3 (BT) Ceramics for Next-Generation MLCCs
    Intae Seo, Ka-Young Lee, Cheol-Min Oh, Hyoung-Won Kang
    Ceramist.2023; 26(2): 172.     CrossRef
  • Coating Ni particles to preserve their conductivity during sintering in oxidizing atmospheres
    Damoon Sohrabi Baba Heidary, Clive A. Randall
    Chemical Engineering Journal.2016; 304: 1009.     CrossRef
  • Redesigning Multilayer Ceramic Capacitors by Preservation of Electrode Conductivity and Localized Doping
    Damoon Sohrabi Baba Heidary, Clive A. Randall
    ACS Applied Materials & Interfaces.2016; 8(45): 31449.     CrossRef
  • Study on the behavior of atomic layer deposition coatings on a nickel substrate at high temperature
    Damoon Sohrabi Baba Heidary, Clive A Randall
    Nanotechnology.2016; 27(24): 245701.     CrossRef
Article image
[English]
Fabrication of Fe-TiB2 Composite Powder by High-Energy Milling and Subsequent Reaction Synthesis
H.X. Khoa, N.Q. Tuan, Y.H. Lee, B.H. Lee, N.H. Viet, J.S. Kim
J Korean Powder Metall Inst. 2013;20(3):221-227.
DOI: https://doi.org/10.4150/KPMI.2013.20.3.221
  • 716 View
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  • 10 Citations
AbstractAbstract PDF
TiB_2-reinforced iron matrix composite (Fe-TiB_2) powder was in-situ fabricated from titanium hydride (TiH_2) and iron boride (FeB) powders by the mechanical activation and a subsequent reaction. Phase formation of the composite powder was identified by X-ray diffraction (XRD). The morphology and phase composition were observed and measured by field emission-scanning electron microscopy (FE-SEM) and energy-dispersive X-ray spectroscopy (EDS), respectively. The results showed that TiB_2 particles formed in nanoscale were uniformly distributed in Fe matrix. Fe_2B phase existed due to an incomplete reaction of Ti and FeB. Effect of milling process and synthesis temperature on the formation of composite were discussed.

Citations

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    Xueyin Liu, Quanli Jia, Shaowei Zhang, William E. Lee
    International Materials Reviews.2024; 69(2): 107.     CrossRef
  • TiB2-Fe hard alloys obtained using SHS powders of the Ti-B-Fe system
    O.K. Lepakova, O.A. Shkoda
    International Journal of Refractory Metals and Hard Materials.2024; 125: 106915.     CrossRef
  • In Situ Spark Plasma Sintering, Microstructure and Mechanical Properties of Fe-15Cr-2Mn-1.5Al Matrix Composites Reinforced with TiB2 and CrFeB
    Jian Liu, Min Wu, Bin Wang, Wei Xu, Weiping Chen, Fangfang Liu
    JOM.2023; 75(3): 886.     CrossRef
  • Glass-Forming Ability and Magnetic Properties of Al82Fe16Ce2 and Al82Fe14Mn2Ce2 Alloys Prepared by Mechanical Alloying
    Nguyen Hong Hai, Nguyen Hoang Viet, Nguyen Thi Hoang Oanh
    Applied Sciences.2023; 14(1): 152.     CrossRef
  • Powder metallurgy processed TiB2-reinforced steel matrix composites: a review
    Silani Sahoo, Bharat Bhushan Jha, Animesh Mandal
    Materials Science and Technology.2021; 37(14): 1153.     CrossRef
  • Synthesis of Cu-based TiCx composites via in-situ reaction between CuxTi melt and dissolvable solid carbon
    Lei Guo, Yang Yang, Xiaochun Wen, Han Gao, Zhe Wang, Zhancheng Guo
    Powder Technology.2020; 362: 375.     CrossRef
  • Microstructure and Electrical Property of Ex-Situ and In-Situ Copper Titanium Carbide Nanocomposites
    Nguyen Hoang Viet, Nguyen Thi Hoang Oanh
    Metals.2020; 10(6): 735.     CrossRef
  • Mechanical and Wear Behaviour of Hot-Pressed 304 stainless Steel Matrix Composites Containing TiB2 Particles
    Silani Sahoo, Bharat B. Jha, Tarasankar Mahata, Jyothi Sharma, Tammana S. R. Ch. Murthy, Animesh Mandal
    Transactions of the Indian Institute of Metals.2019; 72(5): 1153.     CrossRef
  • Effect of volume fraction of reinforcement phase on mechanical behavior of ultra-high-temperature composite consisting of iron matrix and TiB2 particulates
    Babak Jahani, Mehdi Salimi Jazi, Fardad Azarmi, Andrew Croll
    Journal of Composite Materials.2018; 52(5): 609.     CrossRef
  • Impression creep behaviour of TiB2 particles reinforced steel matrix composites
    S. Sahoo, B. B. Jha, T.S. Mahata, J. Sharma, T. S. R. Ch. Murthy, A. Mandal
    Materials Science and Technology.2018; 34(16): 1965.     CrossRef
Article image
[Korean]
Effect of Heat Treatment Environment on the Properties of Cold Sprayed Cu-15 at.%Ga Coating Material for Sputtering Target
Byung-Chul Choi, Dong-Yong Park, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
J Korean Powder Metall Inst. 2011;18(6):552-561.
DOI: https://doi.org/10.4150/KPMI.2011.18.6.552
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  • 9 Citations
AbstractAbstract PDF
This study attempted to manufacture a Cu-15 at.%Ga coating layer via the cold spray process and investigated the effect of heat treatment environment on the properties of cold sprayed coating material. Three kinds of heat treatment environments, 5%H_2+argon, pure argon, and vacuum were used in this study. Annealing treatments were conducted at 200sim800°C/1 hr. With the cold sprayed coating layer, pure alpha-Cu and small amounts of Ga_2O_3 were detected in the XRD, EDS, EPMA analyses. Porosity significantly decreased and hardness also decreased with increasing annealing temperature. The inhomogeneous dendritic microstructure of cold sprayed coating material changed to the homogeneous and dense one (microstructural evolution) with annealing heat treatment. Oxides near the interface of particles could be reduced by heat treatment especially in vacuum and argon environments. Vacuum environment during heat treatment was suggested to be most effective one to improve the densification and purification properties of cold sprayed Cu-15 at.%Ga coating material.

Citations

Citations to this article as recorded by  
  • Manufacturing of Large-Scale Cold-Sprayed Ta Target Material and Its Sputtering Property
    Gi-Su Ham, Dong-Yeol Wi, Jun-Mo Yang, Kee-Ahn Lee
    Journal of Thermal Spray Technology.2019; 28(8): 1974.     CrossRef
  • Effect of Hot Isostatic Pressing on the Microstructure and Propertiesof Kinetic Sprayed Nb Coating Material
    Ji-Hye Lee, Sangsun Yang, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2016; 23(1): 15.     CrossRef
  • Fabrication and Microstructure/Properties of Bulk-typeTantalum Material by a Kinetic Spray Process
    Ji-Hye Lee, Ji-Won Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2016; 23(1): 8.     CrossRef
  • Effect of Heat Treatment Environment on the Microstructure and Properties of Kinetic Sprayed Tantalum Coating Layer
    Ji-Hye Lee, Hyung-Jun Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2015; 22(1): 32.     CrossRef
  • The Effect of Annealing Heat Treatment on the Microstructure and Macroscopic Properties of Kinetic-Sprayed Ta Coating Layer
    Myeong Ju Lee, Jae Sung Oh, Hyung Jun Kim, Ik Hyun Oh, Kee Ahn Lee
    Advanced Materials Research.2014; 893: 64.     CrossRef
  • Manufacturing of Cu Repair Coating Material Using the Kinetic Spray Process and Changes in the Microstructures and Properties by Heat Treatment
    Min-Gwang Jeon, Hyung-Jun Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2014; 21(5): 349.     CrossRef
  • Manufacturing and Properties of CGI-based Composite Coating Layer Utilizing a Warm Spray Process and Cu-Ga and Cu-In Mixed Powders
    Min-Gwang Jeon, Myeong-Ju Lee, Hyeong-Jun Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2014; 21(3): 229.     CrossRef
  • Effect of Heat Treatment Environment on the Densification of Cold Sprayed Ti Coating Layer
    Ji-Sang Yu, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2012; 19(2): 110.     CrossRef
  • Sintering and Rolling Behavior of Cu-50In-13Ga Ternary Alloy Powder for Sputtering Target
    Dae-Won Kim, Yong-Ho Kim, Jung-Han Kim, Dae-Guen Kim, Jong-Hyeon Lee, Kwang-Bo Choi, Hyeon-Taek Son
    Journal of Korean Powder Metallurgy Institute.2012; 19(4): 264.     CrossRef
Article image
[Korean]
Production and Properties of Ag Metallic Nanoparticle Fluid by Electrical Explosion of Wire in Liquid
E.J. Park, L.H. Bac, J.S. Kim, Y.S. Kwon, J.C. Kim, H.S. Choi, Y.H. Chung
J Korean Powder Metall Inst. 2009;16(3):217-222.
DOI: https://doi.org/10.4150/KPMI.2009.16.3.217
  • 756 View
  • 0 Download
  • 9 Citations
AbstractAbstract PDF
This paper presents a novel single-step method to prepare the Ag nanometallic particle dispersed fluid (nanofluid) by electrical explosion of wire in liquid, deionized water (DI water). X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM) were used to investigate the characteristics of the Ag nanofluids. Zeta potential was also used to measure the dispersion properties of the as-prepared Ag nanofluid. Pure Ag phase was detected in the nanofluids using water. FE-SEM analysis shows that the size of the particles formed in DI water was about 88 nm and Zeta potential value was about -43.68 without any physical and chemical treatments. Thermal conductivity of the as-prepared Ag particle dispersed nanofluid shows much higher value than that of pure DI water.

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  • Synthesis and Characterization of Cu Nanoparticles by Wire Explosion Technique for Antibacterial Applications
    Bilal K. Al-Rawi, Safaa Mustafa Hameed, Sundus Alzuhairi
    BioNanoScience.2025;[Epub]     CrossRef
  • Synthesis and Characterizations of Physical and Antibacterial Properties of the Ag Nanoparticles by Exploding of Wire Technique
    Abdulkareem M. Hussain, Bilal K. Al-Rawi
    International Journal of Nanoscience.2024;[Epub]     CrossRef
  • Enhancing adsorption efficiency for environmentally-friendly removal of As(V) and Pb(II) using a biochar-iron oxide composite
    Soo Hyeon Kim, Ji-In Park, Seungsoo Lee, Ha-Rim An, Hyeran Kim, Byoungchul Son, Jiwon Seo, ChangYeon Kim, Yesul Jeong, Kyuseok Choi, Seulki Jeong, Hyun Uk Lee
    Applied Surface Science.2024; 667: 160348.     CrossRef
  • The Impact of Particle Size and Surface Treatment of Zirconia Suspension for Photocuring Additive Manufacturing
    Mee-Jin Jun, Jin-Ho Kang, Kumaresan Sakthiabirami, Seyed Aliakbar Hosseini Toopghara, Ye-Seul Kim, Kwi-Dug Yun, Sang-Won Park
    Materials.2023; 16(4): 1670.     CrossRef
  • Analysis of Physicochemical Properties of Red Ginseng Powder Based on Particle Size
    Hee Jeong Choi, Sang Yoon Lee, Jung Gyu Lee, Dong Hyeon Park, Jing Jing Bai, Byung-Joo Lee, Yoon-Sun Kim, Youngjae Cho, Mi-Jung Choi
    Food Engineering Progress.2017; 21(3): 225.     CrossRef
  • Preparation and Characteristics of Fluorinated Carbon Nanotube Applied Capacitive Desalination Electrode with Low Energy Consumption
    Hyun-woo Yoo, Ji-hyun Kang, Nam-soo Park, Tae-il Kim, Min-Il Kim, Young-Seak Lee
    Applied Chemistry for Engineering.2016; 27(4): 386.     CrossRef
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    Eun Ju Park, Sung Dae Park, In Cheol Bang, Young-Bin Park, Hyung Wook Park
    Materials Letters.2012; 81: 193.     CrossRef
  • Platinum nanoparticles reduce ovariectomy-induced bone loss by decreasing osteoclastogenesis
    Woon-Ki Kim, Jin-Chun Kim, Hyun-Jung Park, Ok-Joo Sul, Mi-Hyun Lee, Ji-Soon Kim, Hye-Seon Choi
    Experimental & Molecular Medicine.2012; 44(7): 432.     CrossRef
  • Optimal synthesis and characterization of Ag nanofluids by electrical explosion of wires in liquids
    Eun Ju Park, Seung Won Lee, In Cheol Bang, Hyung Wook Park
    Nanoscale Research Letters.2011;[Epub]     CrossRef
Research Articles
Article image
[Korean]
Development of Composite-film-based Flexible Energy Harvester using Lead-free BCTZ Piezoelectric Nanomaterials
Gwang Hyeon Kim, Hyeon Jun Park, Bitna Bae, Haksu Jang, Cheol Min Kim, Donghun Lee, Kwi-Il Park
J Powder Mater. 2024;31(1):16-22.   Published online February 28, 2024
DOI: https://doi.org/10.4150/KPMI.2024.31.1.16
  • 1,372 View
  • 30 Download
  • 8 Citations
AbstractAbstract PDF
Composite-based piezoelectric devices are extensively studied to develop sustainable power supply and selfpowered devices owing to their excellent mechanical durability and output performance. In this study, we design a leadfree piezoelectric nanocomposite utilizing (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 (BCTZ) nanomaterials for realizing highly flexible energy harvesters. To improve the output performance of the devices, we incorporate porous BCTZ nanowires (NWs) into the nanoparticle (NP)-based piezoelectric nanocomposite. BCTZ NPs and NWs are synthesized through the solidstate reaction and sol-gel-based electrospinning, respectively; subsequently, they are dispersed inside a polyimide matrix. The output performance of the energy harvesters is measured using an optimized measurement system during repetitive mechanical deformation by varying the composition of the NPs and NWs. A nanocomposite-based energy harvester with 4:1 weight ratio generates the maximum open-circuit voltage and short-circuit current of 0.83 V and 0.28 A, respectively. In this study, self-powered devices are constructed with enhanced output performance by using piezoelectric energy harvesting for application in flexible and wearable devices.

Citations

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  • Long‐Lasting, Steady and Enhanced Energy Harvesting by Inserting a Conductive Layer into the Piezoelectric Polymer
    HakSu Jang, Gwang Hyeon Kim, Dong Won Jeon, Hyeon Jun Park, BitNa Bae, Nagamalleswara Rao Alluri, Cheol Min Kim, Changyeon Baek, Min‐Ku Lee, Sung Beom Cho, Gyoung‐Ja Lee, Kwi‐Il Park
    Advanced Functional Materials.2025;[Epub]     CrossRef
  • Flexible hybrid thermoelectric films made of bismuth telluride-PEDOT:PSS composites enabled by freezing-thawing process and simple chemical treatment
    Cheol Min Kim, Seoha Kim, Nagamalleswara Rao Alluri, Bitna Bae, Momanyi Amos Okirigiti, Gwang Hyun Kim, Hyeon Jun Park, Haksu Jang, Changyeon Baek, Min-Ku Lee, Gyoung-Ja Lee, Kwi-Il Park
    Materials Today Chemistry.2025; 44: 102532.     CrossRef
  • Dual-controlled piezoelectric composite film with enhanced crystallinity and defect-free via solvent vapor treatment
    HakSu Jang, Hyeon Jun Park, Gwang Hyeon Kim, Cheol Min Kim, Nagamalleswara Rao Alluri, BitNa Bae, HyoMin Jeon, DongHun Lee, Kwi-Il Park
    Nano Energy.2025; 136: 110705.     CrossRef
  • Optimized Process and Mechanical and Electrical Analysis of Polyimide/Pb(Zr,Ti)O3-Based Flexible Piezoelectric Composites
    Junki Lee, Sang-il Yoon, Hyunseung Kim, Chang Kyu Jeong
    Journal of Powder Materials.2025; 32(1): 16.     CrossRef
  • Flexible Hybrid Energy Harvester based on Thermoelectric Composite Film and Electrospun Piezopolymer Membranes
    Hyomin Jeon, Cheol Min Kim, Hyeon Jun Park, Bitna Bae, Hyejeong Choi, HakSu Jang, Kwi-Il Park
    Journal of Powder Materials.2025; 32(2): 104.     CrossRef
  • Flexible Thermoelectric Energy Harvester with Stacked Structure of Thermoelectric Composite Films Made of PVDF and Bi2Te3-Based Particles
    Da Eun Shin, Nagamalleswara Rao Alluri, Kwi-Il Park
    ACS Applied Energy Materials.2024; 7(19): 8288.     CrossRef
  • Enhanced energy harvesting of fibrous composite membranes via plasma-piezopolymer interaction
    Hyeon Jun Park, Bitna Bae, HakSu Jang, Dong Yeol Hyeon, Dong Hun Lee, Gwang Hyun Kim, Cheol Min Kim, Nagamalleswara Rao Alluri, Changyeon Baek, Min-Ku Lee, Gyoung-Ja Lee, Kwi-Il Park
    Nano Energy.2024; 131: 110299.     CrossRef
  • CoFe2O4-BaTiO3 core-shell-embedded flexible polymer composite as an efficient magnetoelectric energy harvester
    Bitna Bae, Nagamalleswara Rao Alluri, Cheol Min Kim, Jungho Ryu, Gwang Hyeon Kim, Hyeon Jun Park, Changyeon Baek, Min-Ku Lee, Gyoung-Ja Lee, Geon-Tae Hwang, Kwi-Il Park
    Materials Today Physics.2024; 48: 101567.     CrossRef
Article image
[English]
Microstructural Evolution and Mechanical Properties of Ti-6Al-4V Alloy through Selective Laser Melting: Comprehensive Study on the Effect of Hot Isostatic Pressing (HIP)
Gargi Roy, Raj Narayan Hajra, Woo Hyeok Kim, Jongwon Lee, Sangwoo Kim, Jeoung Han Kim
J Powder Mater. 2024;31(1):1-7.   Published online February 28, 2024
DOI: https://doi.org/10.4150/KPMI.2024.31.1.1
  • 5,115 View
  • 122 Download
  • 8 Citations
AbstractAbstract PDF

This study explores the profound impact of varying oxygen content on microstructural and mechanical properties in specimens HO and LO. The higher oxygen concentration in specimen HO is found to significantly influence alpha lath sizes, resulting in a size of 0.5-1 μm, contrasting with the 1-1.5 μm size observed in specimen LO. Pore fraction, governed by oxygen concentration, is high in specimen HO, registering a value of 0.11%, whereas specimen LO exhibits a lower pore fraction (0.02%). Varied pore types in each specimen further underscore the role of oxygen concentration in shaping microstructural morphology. Despite these microstructural variations, the average hardness remains consistent at ~370 HV. This study emphasizes the pivotal role of oxygen content in influencing microstructural features, contributing to a comprehensive understanding of the intricate interplay between elemental composition and material properties.

Citations

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  • Mechanical response and microstructural evolution of a composite joint fabricated by green laser dissimilar welding of VCoNi medium entropy alloy and 17-4PH stainless steel
    Hadiseh Esmaeilpoor, Mahdi Aghaahmadi, Hyun Jong Yoo, Chan Woong Park, Tae Jin Jang, Seok Su Sohn, Jeoung Han Kim
    Journal of Materials Science & Technology.2025; 213: 223.     CrossRef
  • High-integrity diffusion bonding of laser powder bed fused, forged, and rolled Ti–6Al–4V alloys
    Seoyeon Jeon, Hyunjong Ha, Dong Jun Lee, Hyeonil Park, Yong Nam Kwon, Hyunjoo Choi, Hyokyung Sung
    Journal of Materials Research and Technology.2025; 35: 2108.     CrossRef
  • Removal of Organic and Inorganic Contaminants from Titanium Turning Scrap via Alkali and Acid Two-Step Cleaning
    Seong Min An, Raj Narayan Hajra, Chan Hee Park, Jin-Ho Yoon, Jinsung Rho, Chang-Min Yoon, Jeoung Han Kim
    MATERIALS TRANSACTIONS.2025; 66(7): 855.     CrossRef
  • Effect of Support Structure on Residual Stress Distribution in Ti-6Al-4V Alloy Fabricated by Laser Powder Bed Fusion
    Seungyeon Lee, Haeum Park, Min Jae Baek, Dong Jun Lee, Jae Wung Bae, Ji-Hun Yu, Jeong Min Park
    Journal of Powder Materials.2025; 32(3): 244.     CrossRef
  • Obtaining functionally-graded metal-matrix materials Ti‒6Al‒4V + WC in the process of 3D printing by the method of additive plasma-arc deposition
    V. Korzhyk, A. Grynyuk, O. Babych, O. Berdnikova, Ye. Illiashenko, O. Bushma
    The Paton Welding Journal.2025; 2025(8): 29.     CrossRef
  • Obtaining functionally-graded metal-matrix materials ti‒6al‒4v + wc by the method of additive plasma-arc deposition
    V.M. Korzhyk, A.A. Grynyuk, O.A. Babych, O.M. Berdnikova, Ye.V. Illiashenko, O.I. Bushma
    Avtomatičeskaâ svarka (Kiev).2025; 2025(5): 48.     CrossRef
  • Comparative Review of the Microstructural and Mechanical Properties of Ti-6Al-4V Fabricated via Wrought and Powder Metallurgy Processes
    Raj Narayan Hajra, Gargi Roy, An Seong Min, Hyunseok Lee, Jeoung Han Kim
    Journal of Powder Materials.2024; 31(5): 365.     CrossRef
  • A Parametric Study on the L-PBF Process of an AlSi10Mg Alloy for High-Speed Productivity of Automotive Prototype Parts
    Yeonha Chang, Hyomoon Joo, Wanghyun Yong, Yeongcheol Jo, Seongjin Kim, Hanjae Kim, Yeon Woo Kim, Kyung Tae Kim, Jeong Min Park
    Journal of Powder Materials.2024; 31(5): 390.     CrossRef
Review Paper
Article image
[Korean]
Review on Characterization Method and Recent Research Trend about Metal Powder for Powder Bed Fusion (PBF) Process
Bin Lee, Dae-Kyeom Kim, Young Il Kim, Do Hoon Kim, Yong Son, Kyoung-Tae Park, Taek-Soo Kim
J Korean Powder Metall Inst. 2020;27(6):509-519.   Published online December 1, 2020
DOI: https://doi.org/10.4150/KPMI.2020.27.6.509
  • 997 View
  • 9 Download
  • 8 Citations
AbstractAbstract PDF

A well-established characterization method is required in powder bed fusion (PBF) metal additive manufacturing, where metal powder is used. The characterization methods from the traditional powder metallurgy process are still being used. However, it is necessary to develop advanced methods of property evaluation with the advances in additive manufacturing technology. In this article, the characterization methods of powders for metal PBF are reviewed, and the recent research trends are introduced. Standardization status and specifications for metal powder for the PBF process which published by the ISO, ASTM, and MPIF are also covered. The establishment of powder characterization methods are expected to contribute to the metal powder industry and the advancement of additive manufacturing technology through the creation of related databases.

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  • Enhanced flow properties of SiO 2 nanoparticles coated low-cost hydrogenation-dehydrogenation Ti-6Al-4V powder for powder bed fusion process
    Ukju Gim, Sehun Kim, Tae hu Kang, Jongik Lee, Sanghee Jeong, Jimin Han, Bin Lee
    Powder Metallurgy.2025; 68(2): 95.     CrossRef
  • SiO 2 nanoparticle-coated Ti-6Al-4V spherical powder for powder bed fusion additive manufacturing process
    Jongik Lee, Taehoo Kang, Ukju Gim, Sehun Kim, Sanghee Jung, Jimin Han, Bin Lee
    Powder Metallurgy.2025; 68(4): 333.     CrossRef
  • Effect of Support Structure on Residual Stress Distribution in Ti-6Al-4V Alloy Fabricated by Laser Powder Bed Fusion
    Seungyeon Lee, Haeum Park, Min Jae Baek, Dong Jun Lee, Jae Wung Bae, Ji-Hun Yu, Jeong Min Park
    Journal of Powder Materials.2025; 32(3): 244.     CrossRef
  • Cost-effective Fabrication of Near β-Ti Alloy via L-PBF: Process Optimization of In-situ Alloying Ti-3Fe
    Sehun Kim, Ukju Gim, Taehu Kang, Jongik Lee, Sanghee Jeong, Jimin Han, Bin Lee
    Journal of Powder Materials.2025; 32(4): 288.     CrossRef
  • A Study on Fabrication of PCD Endmill Holder using PBF Additive Manufacturing Technology
    Min-Woo Sa, Ho-Min Son, Kyung-Hwan Park, Sang-Geun Lee, Dae-Ho Shin, Dong-Gyu Kim
    Journal of the Korean Society of Manufacturing Process Engineers.2024; 23(6): 124.     CrossRef
  • Rheological Characteristic Analysis Methods and Tests of Metal Powders for PBF Additive Manufacturing
    Wan-Sik Woo, Ho-Jin Lee
    Journal of the Korean Society of Manufacturing Process Engineers.2023; 22(10): 1.     CrossRef
  • Residual Stress Analysis of Additive Manufactured A356.2 Aluminum Alloys using X-Ray Diffraction Methods
    SangCheol Park, InYeong Kim, Young Il Kim, Dae-Kyeom Kim, Soong Ju Oh, Kee-Ahn Lee, Bin Lee
    Korean Journal of Metals and Materials.2023; 61(7): 534.     CrossRef
  • Enhancing spreadability of hydrogenation-dehydrogenation titanium powder and novel method to characterize powder spreadability for powder bed fusion additive manufacturing
    Young Il Kim, Dae-Kyeom Kim, InYeong Kim, Sang Cheol Park, Dongju Lee, Bin Lee
    Materials & Design.2022; 223: 111247.     CrossRef
Articles
Article image
[Korean]
Synthesis of Nickel Nanoparticle-adsorbed Aluminum Powders for Energetic Applications
Dong Won Kim, Gu Hyun Kwon, Kyung Tae Kim
J Korean Powder Metall Inst. 2016;24(3):242-247.   Published online June 1, 2016
DOI: https://doi.org/10.4150/KPMI.2017.24.3.242
  • 987 View
  • 7 Download
  • 8 Citations
AbstractAbstract PDF

In this study, the electroless nickel plating method has been investigated for the coating of Ni nanoparticles onto fine Al powder as promising energetic materials. The adsorption of nickel nanoparticles onto the surface of Al powders has been studied by varying various process parameters, namely, the amounts of reducing agent, complexing agent, and pH-controller. The size of nickel nanoparticles synthesized in the process has been optimized to approximately 200 nm and they have been adsorbed on the Al powder. TGA results clearly show that the temperature at which oxidation of Al mainly occurs is lowered as the amount of Ni nanoparticles on the Al surface increases. Furthermore, the Ni-plated Al powders prepared for all conditions show improved exothermic reaction due to the selfpropagating high-temperature synthesis (SHS) between Ni and Al. Therefore, Al powders fully coated by Ni nanoparticles show the highest exothermic reactivity: this demonstrates the efficiency of Ni coating in improving the energetic properties of Al powders.

Citations

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  • Synthesis and oxidation behavior of Al@Ni-Fe core-shell energetic composite powders
    Khawar Yaqoob, Asifa Kusar, Amena Mohsin, Onur Ertuğrul, Ahmet Çağrı Kılınç, Fahad Ali, Rub Nawaz Shahid, Naeem ul Haq Tariq, Hassan Wahab, Hasan Bin Awais
    Energetic Materials Frontiers.2025;[Epub]     CrossRef
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    永鹏 陈
    Material Sciences.2024; 14(08): 1178.     CrossRef
  • Study on the Combustion Characteristics of Ethanol Nanofuel
    Kwanyoung Noh, Hyemin Kim, Siwook Nam, Soonho Song
    Aerospace.2023; 10(10): 878.     CrossRef
  • The Self-Reduction during the Thermal Decomposition of an Ammonium Molybdate
    Kyoungkeun Yoo, Won Beom Koo, Hanggoo Kim, Sang-hun Lee
    Minerals.2023; 13(2): 133.     CrossRef
  • Increased exothermic reactivity of polytetrafluoroethylene-coated aluminum powders: Impact of powder size reduction
    Soo-ho Jung, Kyung Tae Kim, Jinhee Bae, Yoon Jeong Choi, Jae Min Kim, Jeong-Yun Sun
    Materials Letters.2023; 351: 135009.     CrossRef
  • High energy Al@Ni preparation of core-shell particles by adjusting nickel layer thickness
    Yongpeng Chen, Jianguo Zhang, Jiawei Zhu, Ning Xiang, Huichao Zhang, Zunning Zhou
    Vacuum.2022; 205: 111344.     CrossRef
  • Electroless deposition of Ni nanoparticles on micron-sized boron carbide particles: Physicochemical and oxidation properties
    Prashant Ravasaheb Deshmukh, Hyung Soo Hyun, Youngku Sohn, Weon Gyu Shin
    Korean Journal of Chemical Engineering.2020; 37(3): 546.     CrossRef
  • Synthesis and exothermic reactions of ultra-fine snowman-shaped particles with directly bonded Ni/Al interfaces
    Gu Hyun Kwon, Kyung Tae Kim, Dong Won Kim, Jungho Choe, Jung Yeul Yun, Jong-Man Kim
    Applied Surface Science.2019; 476: 481.     CrossRef
Article image
[English]
Development of Powder Injection Molding Process for Fabrication of Glass Component
Dongguo Lin, Junghyun Lee, Seong Jin Park
J Korean Powder Metall Inst. 2016;23(1):26-32.   Published online February 1, 2016
DOI: https://doi.org/10.4150/KPMI.2016.23.1.26
  • 1,951 View
  • 19 Download
  • 8 Citations
AbstractAbstract PDF

Powder injection molding (PIM), which combines the advantages of powder metallurgy and plastic injection molding technologies, has become one of the most efficient methods for the net-shape production of both metal and ceramic components. In this work, plasma display panel glass bodies are prepared by the PIM process. After sintering, the hot isostatic pressing (HIP) process is adopted for improving the density and mechanical properties of the PIMed glass bodies. The mechanical and thermal behaviors of the prepared specimens are analyzed through bending tests and dilatometric analysis, respectively. After HIPing, the flexural strength of the prepared glass body reaches up to 92.17 MPa, which is 1.273 and 2.178 times that of the fused glass body and PIMed bodies, respectively. Moreover, a thermal expansion coefficient of 7.816 × 10−6/°C is obtained, which coincides with that of the raw glass powder (7.5-8.0 × 10−6/°C), indicating that the glass body is fully densified after the HIP process.

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  • Fabrication and characteristics of Li2TiO3 pebbles manufactured by using powder injection molding (PIM) process
    Young Ah Park, Yi-Hyun Park, Mu-Young Ahn, Young Soo Yoon
    Journal of Nuclear Materials.2024; 597: 155140.     CrossRef
  • Combined simulation of micro and nanoparticles in RF inductively coupled plasma torches with the variations of metallic species and feeding nozzle location
    Cheongbin Cheon, Ho Jun Kim, Hae June Lee
    Japanese Journal of Applied Physics.2023; 62(SA): SA1014.     CrossRef
  • High-throughput injection molding of transparent fused silica glass
    Markus Mader, Oliver Schlatter, Barbara Heck, Andreas Warmbold, Alex Dorn, Hans Zappe, Patrick Risch, Dorothea Helmer, Frederik Kotz, Bastian E. Rapp
    Science.2021; 372(6538): 182.     CrossRef
  • Controlling the sintering response in the development of multilayered components produced via powder injection molding route—a review
    O. J. Ojo-kupoluyi, S. M. Tahir, T. T. Dele-Afolabi, M. S. Anuar
    The International Journal of Advanced Manufacturing Technology.2020; 107(9-10): 3755.     CrossRef
  • Fabrication of pressureless sintered Si3N4 ceramic balls by powder injection molding
    Chang Woo Gal, Gi Woung Song, Woon Hyung Baek, Hyung Kyu Kim, Dae Keun Lee, Ki Wook Lim, Seong Jin Park
    Ceramics International.2019; 45(5): 6418.     CrossRef
  • Thermal decomposition behavior and modeling of PMN-PZT ceramic feedstock with varying binder compositions
    Jae Man Park, Jun Sae Han, Chang Woo Gal, Joo Won Oh, Dongguo Lin, Jaebum Noh, Kunal H Kate, Sundar V Atre, Youngmoo Kim, Seong Jin Park
    Materials Research Express.2019; 6(6): 065316.     CrossRef
  • Powder Injection Molding Process in Industrial Fields
    Joo Won OH, Chang Woo GAL, Daseul SHIN, Jae Man PARK, Woo Seok YANG, Seong Jin PARK
    Journal of the Japan Society of Powder and Powder Metallurgy.2018; 65(9): 539.     CrossRef
  • Optimization of Process Condition for Fe Nano Powder Injection Molding
    Joo Won Oh, Won Sik Lee, Seong Jin Park
    Journal of Korean Powder Metallurgy Institute.2017; 24(3): 223.     CrossRef
Article image
[English]
Synthesis of Nickel and Copper Nanopowders by Plasma Arc Evaporation
Young-Sang Cho, Jong Woo Moon, Kook Chae Chung, Jung-Goo Lee
J Korean Powder Metall Inst. 2013;20(6):411-424.
DOI: https://doi.org/10.4150/KPMI.2013.20.6.411
  • 700 View
  • 4 Download
  • 8 Citations
AbstractAbstract PDF
In this study, the synthesis of nickel nanoparticles and copper nanospheres for the potential applications of MLCC electrode materials has been studied by plasma arc evaporation method. The change in the broad distribution of the size of nickel and copper nanopowders is successfully controlled by manifesting proper mixture of gas ambiance for plasma generation in the size range of 20 to 200 nm in diameter. The factors affecting the mean diameter of the nanopowder was studied by changing the composition of reactive gases, indicating that nitrogen enhances the formation of larger particles compared to hydrogen gas. The morphologies and particle sizes of the metal nanoparticles were observed by SEM, and ultrathin oxide layers on the powder surface generated during passivation step have been confirmed using TEM. The metallic FCC structure of the nanoparticles was confirmed using powder X-ray diffraction method.

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  • Research progress on the preparation methods and fundamental principles of ultrafine Mo powder
    Lu Wang, Hong-Qi Li, Xiao Liu, Yu-Long Cao
    International Journal of Refractory Metals and Hard Materials.2025; 132: 107281.     CrossRef
  • Arc Discharge Synthesis of Chitosan‐Mediated Copper Nanoparticles for Heterogeneous Catalysis in 4‐Nitrophenol Degradation
    Noor Azfarena Ahmad, Mohammad Taghi Hajibeigy, Mohsen Nabi Poor, Aras Kartouzian, Hassan Moeini, Kamyar Shameli
    Particle & Particle Systems Characterization.2024;[Epub]     CrossRef
  • Tribological properties and tribomechanism of nickel nanoparticles in-situ synthesized in rapeseed oil
    Wenya Xu, Guangbin Yang, Shengmao Zhang, Jun Xu, Yujuan Zhang, Tianhua Sun, Ningning Song, Laigui Yu, Pingyu Zhang
    Friction.2024; 12(3): 474.     CrossRef
  • Oxidative Steam Reforming of Methanol over Cu-Based Catalysts
    Matteo Tommasi, Davide Ceriotti, Alice Gramegna, Simge Naz Degerli, Gianguido Ramis, Ilenia Rossetti
    Catalysts.2024; 14(11): 759.     CrossRef
  • Functional metal powders: Design, properties, applications, and prospects
    Xin Wang, Haitao Yang, Xiaohua Yu, Chaoquan Hu, Jiacheng Hu, Rongxing Li, Yingzhi Zhang
    Materials Science and Engineering: B.2022; 280: 115708.     CrossRef
  • Facile synthesis of Cu and CuO nanoparticles from copper scrap using plasma arc discharge method and evaluation of antibacterial activity
    S. B. Tharchanaa, K. Priyanka, K. Preethi, G. Shanmugavelayutham
    Materials Technology.2021; 36(2): 97.     CrossRef
  • Fabrication of Hollow or Macroporous Silica Particles by Spray Drying of Colloidal Dispersion
    Young-Sang Cho
    Journal of Dispersion Science and Technology.2016; 37(1): 23.     CrossRef
  • Fabrication Of Colloidal Clusters Decorated With Dye Molecules For Potential Application As Photonic Molecules
    Y.-S. Cho
    Archives of Metallurgy and Materials.2015; 60(2): 1221.     CrossRef
Article image
[English]
Rapid Heating Concepts in Sintering
Randall M. German
J Korean Powder Metall Inst. 2013;20(2):85-99.
DOI: https://doi.org/10.4150/KPMI.2013.20.2.085
  • 689 View
  • 6 Download
  • 8 Citations
AbstractAbstract PDF
Powder metallurgy applied rapid heating to sintering starting year 1900. Since 1970 the study has intensified. Now rapid sintering concepts embrace a spectrum of options ranging from dunk cycles to microwave, induction, exothermic, electric field, and spark approaches. Most of the efforts are targeting reduced microstructure coarsening during sintering, although reduced material decomposition is another common goal. The efforts are impressive for simple shapes and success metrics such a small grain size after densification. Several barriers need to be removed prior to application in powder metallurgy commercial sintering. Rapid heating research needs to focus on significant property gains, accurate product dimensions, and lower costs. So far each property gain obtained with rapid heating is matched by traditional sintering and composition changes. Several examples are cited to show the goals for the next round of innovations.

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  • Enhanced microwave absorption in joule‐heating‐synthesized (Fe1/3Mn1/3Cr1/3)2AlB2 via dielectric–magnetic coupling
    Yuhang Bai, Zelong Yao, Yang Yang, Jinrui Li, Jia Liu, Peipei Wang, Huiling Du, Xing Zhao
    Journal of the American Ceramic Society.2026;[Epub]     CrossRef
  • Joule heating-driven ultrafast synthesis of (Fe 1− x Mn x ) 2AlB 2 and its electromagnetic wave absorption properties
    Yuhang Bai, Zelong Yao, Yang Yang, Jinrui Li, Jia Liu, Peipei Wang, Huiling Du, Xing Zhao, Laifei Cheng
    Journal of Advanced Ceramics.2025; 14(4): 9221057.     CrossRef
  • Preliminary Investigation of Preparing High Burn-Up Structure in Nuclear Fuel by Flash Sintering Using CeO2 as a Surrogate
    Tongye Li, Jing Yang, Chong Yu, Yihan Liang, Yang Li, Xinfang Zhang
    Acta Metallurgica Sinica (English Letters).2021; 34(12): 1758.     CrossRef
  • Pressure‐assisted flash sintering of ZnO ceramics
    Yihan Liang, Siqi Xiang, Tongye Li, Chong Yu, Ke Leng, Xinfang Zhang
    Journal of the American Ceramic Society.2021; 104(12): 6131.     CrossRef
  • Development of Novel Composite Powder Friction Modifier for Improving Wheel-rail Adhesion in High-speed Train
    Min Chul Oh, Byungmin Ahn
    Journal of Korean Powder Metallurgy Institute.2018; 25(6): 501.     CrossRef
  • Microwave Sintering of Ti6Al4V: Optimization of Processing Parameters for Maximal Tensile Strength and Minimal Pore Size
    Dilpreet Singh, Abhishek Rana, Pawan Sharma, Pulak Mohan Pandey, Dinesh Kalyanasundaram
    Metals.2018; 8(12): 1086.     CrossRef
  • Spark Plasma Sintering of Titanium Spherical Particles
    Mohammad Abedi, Dmitry O. Moskovskikh, Alexander S. Rogachev, Alexander S. Mukasyan
    Metallurgical and Materials Transactions B.2016; 47(5): 2725.     CrossRef
  • Effect of the SiC Size on the Thermal and Mechanical Properties of Reaction-bonded Silicon Carbide Ceramics
    Chang-Sup Kwon, Yoon-Suk Oh, Sung-Min Lee, Yoonsoo Han, Hyun-Ick Shin, Youngseok Kim, Seongwon Kim
    Journal of Korean Powder Metallurgy Institute.2014; 21(6): 467.     CrossRef
Review Paper
Article image
[Korean]
Microstructure and Mechanical Properties of CoCrFeMnNi-type High-entropy Alloy Fabricated by Selective Laser Melting: A Review
Jeong Min Park
J Powder Mater. 2022;29(2):132-151.   Published online April 1, 2022
DOI: https://doi.org/10.4150/KPMI.2022.29.2.132
  • 2,293 View
  • 33 Download
  • 7 Citations
AbstractAbstract PDF

The CoCrFeMnNi high-entropy alloy (HEA), which is the most widely known HEA with a single facecentered cubic structure, has attracted significant academic attention over the past decade owing to its outstanding multifunctional performance. Recent studies have suggested that CoCrFeMnNi-type HEAs exhibit excellent printability for selective laser melting (SLM) under a wide range of process conditions. Moreover, it has been suggested that SLM can not only provide great topological freedom of design but also exhibit excellent mechanical properties by overcoming the strength–ductility trade-off via producing a hierarchical heterogeneous microstructure. In this regard, the SLM-processed CoCrFeMnNi HEA has been extensively studied to comprehensively understand the mechanisms of microstructural evolution and resulting changes in mechanical properties. In this review, recent studies on CoCrFeMnNi-type HEAs produced using SLM are discussed with respect to process-induced microstructural evolution and the relationship between hierarchical heterogeneous microstructure and mechanical properties.

Citations

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  • Thermodynamic and Electronic Descriptor-Driven Machine Learning for Phase Prediction in High-Entropy Alloys: Experimental Validation
    Nguyen Lam Khoa, Nguyen Duy Khanh, Hoang Thi Ngoc Quyen, Nguyen Thi Hoang, Oanh, Le Hong Thang, Nguyen Hoa Khiem, Nguyen Hoang Viet
    Journal of Powder Materials.2025; 32(3): 191.     CrossRef
  • Investigation of effects of process parameters on microstructure and fracture toughness of SLM CoCrFeMnNi
    Joseph Agyapong, Diego Mateos, Aleksander Czekanski, Solomon Boakye-Yiadom
    Journal of Alloys and Compounds.2024; 987: 173998.     CrossRef
  • Cryogenic Tensile Behavior of Ferrous Medium-entropy Alloy Additively Manufactured by Laser Powder Bed Fusion
    Seungyeon Lee, Kyung Tae Kim, Ji-Hun Yu, Hyoung Seop Kim, Jae Wung Bae, Jeong Min Park
    journal of Korean Powder Metallurgy Institute.2024; 31(1): 8.     CrossRef
  • Data-driven Approach to Explore the Contribution of Process Parameters for Laser Powder Bed Fusion of a Ti-6Al-4V Alloy
    Jeong Min Park, Jaimyun Jung, Seungyeon Lee, Haeum Park, Yeon Woo Kim, Ji-Hun Yu
    journal of Korean Powder Metallurgy Institute.2024; 31(2): 137.     CrossRef
  • Cryogenic tensile behavior of carbon-doped CoCrFeMnNi high-entropy alloys additively manufactured by laser powder bed fusion
    Haeum Park, Hyeonseok Kwon, Kyung Tae Kim, Ji-Hun Yu, Jungho Choe, Hyokyung Sung, Hyoung Seop Kim, Jung Gi Kim, Jeong Min Park
    Additive Manufacturing.2024; 86: 104223.     CrossRef
  • Microstructural evolution and high strain rate deformation response of SLM-printed CoCrFeMnNi after annealing and deep-cryogenic treatment
    Joseph Agyapong, Aleksander Czekanski, Solomon Boakye Yiadom
    Materials Characterization.2024; 218: 114506.     CrossRef
  • High-speed manufacturing-driven strength-ductility improvement of H13 tool steel fabricated by selective laser melting
    Yeon Woo Kim, Haeum Park, Young Seong Eom, Dong Gill Ahn, Kyung Tae Kim, Ji-hun Yu, Yoon Suk Choi, Jeong Min Park
    Powder Metallurgy.2023; 66(5): 582.     CrossRef
Articles
Article image
[Korean]
Mechanical Properties of Bulk Graphite using Artificial Graphite Scrap as a Function of Particle Size
Sang Hye Lee, Sang Min Lee, Won Pyo Jang, Jae Seung Roh
J Korean Powder Metall Inst. 2021;28(1):13-19.   Published online February 1, 2021
DOI: https://doi.org/10.4150/KPMI.2021.28.1.13
  • 1,685 View
  • 17 Download
  • 7 Citations
AbstractAbstract PDF

Bulk graphite is manufactured using graphite scrap as the filler and phenolic resin as the binder. Graphite scrap, which is the by-product of processing the final graphite product, is pulverized and sieved by particle size. The relationship between the density and porosity is analyzed by measuring the mechanical properties of bulk graphite. The filler materials are sieved into mean particle sizes of 10.62, 23.38, 54.09, 84.29, and 126.64 μm. The bulk graphite density using the filler powder with a particle size of 54.09 μm is 1.38 g/cm3, which is the highest value in this study. The compressive strength tends to increase as the bulk graphite density increases. The highest compressive strength of 43.14 MPa is achieved with the 54.09 μm powder. The highest flexural strength of 23.08 MPa is achieved using the 10.62 μm powder, having the smallest average particle size. The compressive strength is affected by the density of bulk graphite, and the flexural strength is affected by the filler particle size of bulk graphite.

Citations

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  • Effect of Microstructural Change under Pressure during Isostatic Pressing on Mechanical and Electrical Properties of Isotropic Carbon Blocks
    Tae-Sub Byun, Sang-Hye Lee, Suk-Hwan Kim, Jae-Seung Roh
    Materials.2024; 17(2): 387.     CrossRef
  • Feasibility assessment of manufacturing carbonized blocks from rice husk charcoal
    Young-Min Hwang, Jae-Seung Roh, Gibeop Nam
    Biomass Conversion and Biorefinery.2024; 14(20): 26409.     CrossRef
  • Improving the packing and mechanical properties of graphite blocks by controlling filler particle-size distribution
    Hye in Hwang, Ji Hong Kim, Ji Sun Im
    Advanced Composite Materials.2024; 33(5): 762.     CrossRef
  • Effect of Impregnation and Graphitization on EDM Performance of Graphite Blocks Using Recycled Graphite Scrap
    Sang-Hye Lee, Dong-Pyo Jeon, Hyun-Yong Lee, Dong-Gu Lee, Jae-Seung Roh
    Processes.2023; 11(12): 3368.     CrossRef
  • Ultrafine Graphite Scrap and Carbon Blocks Prepared by High-Solid-Loading Bead Milling and Conventional Ball Milling: A Comparative Assessment
    Chonradee Amnatsin, Waroot Kanlayakan, Siraprapa Lhosupasirirat, Nattarut Verojpipath, Boonsueb Pragobjinda, Tanakorn Osotchan, Chakrit Sirisinha, Toemsak Srikhirin
    ACS Omega.2023; 8(50): 47919.     CrossRef
  • The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder
    Sang-Hye Lee, Jae-Hyun Kim, Woo-Seok Kim, Jae-Seung Roh
    Materials.2022; 15(9): 3259.     CrossRef
  • Rheological Behaviour of Hard-Metal Carbide Powder Suspensions at High Shear Rates
    B. Hausnerová, P. Sáha, J. Kubát, T. Kitano, J. Becker
    Journal of Polymer Engineering.2000;[Epub]     CrossRef
Article image
[Korean]
Technology Trend of the additive Manufacturing (AM)
Ji-Won Oh, Hyunwoong Na, Hanshin Choi
J Korean Powder Metall Inst. 2017;24(6):494-507.   Published online December 1, 2017
DOI: https://doi.org/10.4150/KPMI.2017.24.6.494
  • 1,474 View
  • 10 Download
  • 7 Citations
AbstractAbstract PDF

A three-dimensional physical part can be fabricated from a three-dimensional digital model in a layer-wise manner via additive manufacturing (AM) technology, which is different from the conventional subtractive manufacturing technology. Numerous studies have been conducted to take advantage of the AM opportunities to penetrate bespoke custom product markets, functional engineering part markets, volatile low-volume markets, and spare part markets. Nevertheless, materials issues, machines issues, product issues, and qualification/certification issues still prevent the AM technology from being extensively adopted in industries. The present study briefly reviews the standard classification, technological structures, industrial applications, technological advances, and qualification/certification activities of the AM technology. The economics, productivity, quality, and reliability of the AM technology should be further improved to pass through the technology adoption lifecycle of innovation technology. The AM technology is continuously evolving through the introduction of PM materials, hybridization of AM and conventional manufacturing technologies, adoption of process diagnostics and control systems, and enhanced standardization of the whole lifecycle qualification and certification methodology.

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  • Convolutional LSTM based melt-pool prediction from images of laser tool path strategy in laser powder bed fusion for additive manufacturing
    Joung Min Park, Minho Choi, Jumyung Um
    The International Journal of Advanced Manufacturing Technology.2024; 130(3-4): 1871.     CrossRef
  • Color evaluation by thickness of interim restorative resin produced by digital light processing 3D printer
    Wol Kang, Won-Gi Kim
    Journal of Korean Acedemy of Dental Technology.2021; 43(3): 77.     CrossRef
  • Optimization of Metal Powder Particle Size Distribution for Powder Bed Fusion Process via Simulation
    Hwaseon Lee, Dae-Kyeom Kim, Young Il Kim, Jieun Nam, Yong Son, Taek-Soo Kim, Bin Lee
    Journal of Korean Powder Metallurgy Institute.2020; 27(1): 44.     CrossRef
  • Technology Trend of Additive Manufacturing Standardization
    Hanshin Choi, Jinsu Park
    Journal of Korean Powder Metallurgy Institute.2020; 27(5): 420.     CrossRef
  • Multi-step Metals Additive Manufacturing Technologies
    Ji-Won Oh, Jinsu Park, Hanshin Choi
    Journal of Korean Powder Metallurgy Institute.2020; 27(3): 256.     CrossRef
  • Anisotropy in Green Body Bending Strength due to Additive Direction in the Binder-Jetting Additive Manufacturing Process
    Ji-Won Oh, Sahn Nahm, Byoungmoon Kim, Hanshin Choi
    Korean Journal of Metals and Materials.2019; 57(4): 227.     CrossRef
  • Effect of Porosity on Mechanical Anisotropy of 316L Austenitic Stainless Steel Additively Manufactured by Selective Laser Melting
    Jeong Min Park, Jin Myoung Jeon, Jung Gi Kim, Yujin Seong, Sun Hong Park, Hyoung Seop Kim
    Journal of Korean Powder Metallurgy Institute.2018; 25(6): 475.     CrossRef
Article image
[English]
Influence of milling atmosphere on thermoelectric properties of p-type Bi-Sb-Te based alloys by mechanical alloying
Suk-min Yoon, Cheenepalli Nagarjuna, Dong-won Shin, Chul-hee Lee, Babu Madavali, Soon-jik Hong, Kap-ho Lee
J Korean Powder Metall Inst. 2017;24(5):357-363.   Published online October 1, 2017
DOI: https://doi.org/10.4150/KPMI.2017.24.5.357
  • 955 View
  • 4 Download
  • 7 Citations
AbstractAbstract PDF

In this study, Bi-Sb-Te thermoelectric materials are produced by mechanical alloying (MA) and spark plasma sintering (SPS). To examine the influence of the milling atmosphere on the microstructure and thermo-electric (TE) properties, a p-type Bi-Sb-Te composite powder is mechanically alloyed in the presence of argon and air atmospheres. The oxygen content increases to 55% when the powder is milled in the air atmosphere, compared with argon. All grains are similar in size and uniformly, distributed in both atmospheric sintered samples. The Seebeck coefficient is higher, while the electrical conductivity is lower in the MA (Air) sample due to a low carrier concentration compared to the MA (Ar) sintered sample. The maximum figure of merit (ZT) is 0.91 and 0.82 at 350 K for the MA (Ar) and MA (Air) sintered samples, respectively. The slight enhancement in the ZT value is due to the decrease in the oxygen content during the MA (Ar) process. Moreover, the combination of mechanical alloying and SPS process shows a higher hardness and density values for the sintered samples.

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  • Grain Size‐Dependent Thermoelectric Performances of Al2O3 Addition into BiSbTe Alloy During Heat Treatment Fabricated by Mechanical Alloying
    Ji‐Won Ha, Vasudevan Rathinam, Eun‐Ha Go, Soon‐Jik Hong
    Advanced Engineering Materials.2025;[Epub]     CrossRef
  • Revealing the improved thermoelectric performances of (BiSb)2Te3 alloy through rapid solidification of cold-water assisted water atomization approach
    Eun-Ha Go, Rathinam Vasudevan, Ji-Won Ha, Sung-Jae Jo, GeonWoo Baek, Soon-Jik Hong
    Journal of Alloys and Compounds.2025; 1010: 177548.     CrossRef
  • Microstructural and Thermoelectric Properties of Heat-treated Al2O3 Doped BiSbTe Alloy
    Jiwon Ha, Vasudevan Rathinam, Eunha Go, Soonjik Hong
    Journal of the Japan Society of Powder and Powder Metallurgy.2025; 72(Supplement): S983.     CrossRef
  • Advancement of thermoelectric performances through the dispersion of expanded graphene on p-type BiSbTe alloys
    Eun-Ha Go, Rathinam Vasudevan, Babu Madavali, Peyala Dharmaiah, Min-Woo Shin, Sung Ho Song, Soon-Jik Hong
    Powder Metallurgy.2023; 66(5): 722.     CrossRef
  • Influence of milling atmosphere on the structure and magnetic properties of mechanically alloyed Fe40Co30Ni30
    Alex Abraham Paul, Anuj Rathi, Ganesh Varma Thotakura, Tanjore V. Jayaraman
    Materials Chemistry and Physics.2021; 258: 123897.     CrossRef
  • Enhancement of mechanical properties and thermoelectric performance of spark plasma sintered P-type Bismuth Telluride by powder surface oxide reduction
    Ahmed A. Abdelnabi, Vickram Lakhian, Joseph R. McDermid, Yu-Chih Tseng, James S. Cotton
    Journal of Alloys and Compounds.2021; 858: 157657.     CrossRef
  • Solid solution evolution during mechanical alloying in Cu-Nb-Al compounds
    Kaouther Zaara, Mahmoud Chemingui, Virgil Optasanu, Mohamed Khitouni
    International Journal of Minerals, Metallurgy, and Materials.2019; 26(9): 1129.     CrossRef
Article image
[Korean]
Study on Microstructures and Hardness of STS316L Fabricated by Selective Laser Melting
Gi Hun Shin, Joon Phil Choi, Kyung Tae Kim, Byoung Kee Kim, Ji Hun Yu
J Korean Powder Metall Inst. 2016;24(3):210-215.   Published online June 1, 2016
DOI: https://doi.org/10.4150/KPMI.2017.24.3.210
  • 758 View
  • 2 Download
  • 7 Citations
AbstractAbstract PDF

In this study, STS316L powders prepared by gas atomization are used to manufacture bulk structures with dimensions of 10 × 10 × 10 mm3 using selective laser melting (SLM). The microstructures and hardness of the fabricated 316L stainless steel has been investigated with the laser beam overlap varied from 10% to 70%. The microstructures of the fabricated STS316L samples show a decrease in the balling and satellite of powders introducing defect in the bulk samples and the porosity caused by the gap between the molten metal pools disappearing as the overlap ratio increases, whereas a low overlap ratio results in significant balling and a large amount of isolated powders due to the increased gap between the melt pools. Furthermore, the highest value in Vickers hardness is obtained for the sample fabricated by 30% overlapped laser beams. These results show that the overlap ratio of laser beams in the SLM process should be considered as an important process parameter.

Citations

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  • Fabrication and mechanical properties of Al–Si-based alloys by selective laser melting process
    Yeong Seong Eom, Kyung Tae Kim, Dong Won Kim, Soo ho Jung, Jung Woo Nam, Dong Yeol Yang, Jungho Choe, Ji Hun Yu, Injoon Son
    Powder Metallurgy.2021; 64(3): 198.     CrossRef
  • Effect of laser remelting on the surface characteristics of 316L stainless steel fabricated via directed energy deposition
    Seung Yeong Cho, Gwang Yong Shin, Do Sik Shim
    Journal of Materials Research and Technology.2021; 15: 5814.     CrossRef
  • Investigation on Interfacial Microstructures of Stainless Steel/Inconel Bonded by Directed Energy Deposition of alloy Powders
    Yeong Seong Eom, Kyung Tae Kim, Soo-Ho Jung, Jihun Yu, Dong Yeol Yang, Jungho Choe, Chul Yong Sim, Seung Jun An
    Journal of Korean Powder Metallurgy Institute.2020; 27(3): 219.     CrossRef
  • Influence of Powder Size on Properties of Selectively Laser-Melted- AlSi10Mg Alloys
    Yeong Seong Eom, Dong Won Kim, Kyung Tae Kim, Sang Sun Yang, Jungho Choe, Injoon Son, Ji Hun Yu
    Journal of Korean Powder Metallurgy Institute.2020; 27(2): 103.     CrossRef
  • Microstructural effects on the tensile and fracture behavior of selective laser melted H13 tool steel under varying conditions
    Jungsub Lee, Jungho Choe, Junhyeok Park, Ji-Hun Yu, Sangshik Kim, Im Doo Jung, Hyokyung Sung
    Materials Characterization.2019; 155: 109817.     CrossRef
  • Microstructures and Characterization of Al-Si-Mg Alloy Processed by Selective Laser Melting with Post-Heat-treatment
    Gi Seung Lee, Yeong Seong Eom, Kyung Tae Kim, Byoung Kee Kim, Ji Hun Yu
    Journal of Korean Powder Metallurgy Institute.2019; 26(2): 138.     CrossRef
  • Correlation between Microstructure and Mechanical Properties of the Additive Manufactured H13 Tool Steel
    Woojin An, Junhyeok Park, Jungsub Lee, Jungho Choe, Im Doo Jung, Ji-Hun Yu, Sangshik Kim, Hyokyung Sung
    Korean Journal of Materials Research.2018; 28(11): 663.     CrossRef
Article image
[Korean]
Mechanical Property Improvement of the H13 Tool Steel Sculptures Built by Metal 3D Printing Process via Optimum Conditions
Jaecheol Yun, Jungho Choe, Haengna Lee, Ki-Bong Kim, Sangsun Yang, Dong-Yeol Yang, Yong-Jin Kim, Chang-Woo Lee, Ji-Hun Yu
J Korean Powder Metall Inst. 2016;24(3):195-201.   Published online June 1, 2016
DOI: https://doi.org/10.4150/KPMI.2017.24.3.195
  • 1,008 View
  • 10 Download
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AbstractAbstract PDF

In this study, H13 tool steel sculptures are built by a metal 3D printing process at various laser scan speeds. The properties of commercial H13 tool steel powders are confirmed for the metal 3D printing process used: powder bed fusion (PBF), which is a selective laser melting (SLM) process. Commercial H13 powder has an excellent flowability of 16.68 s/50 g with a Hausner ratio of 1.25 and a density of 7.68 g/cm3. The sculptures are built with dimensions of 10 × 10 × 10 mm3 in size using commercial H13 tool steel powder. The density measured by the Archimedes method is 7.64 g/cm3, similar to the powder density of 7.68 g/cm3. The hardness is measured by Rockwell hardness equipment 5 times to obtain a mean value of 54.28 HRC. The optimum process conditions in order to build the sculptures are a laser power of 90 W, a layer thickness of 25 μm, an overlap of 30%, and a laser scan speed of 200 mm/s.

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  • Spheroidization of Enamel Powders by Radio Frequency Plasma Treatment and Application to Additive Manufacturing
    Ki-Bong Kim, Dong-Yeol Yang, Yong-Jin Kim, Jungho Choe, Ji-Na Kwak, Woo-Hyung Jung
    Journal of Korean Powder Metallurgy Institute.2020; 27(5): 388.     CrossRef
  • Microstructural effects on the tensile and fracture behavior of selective laser melted H13 tool steel under varying conditions
    Jungsub Lee, Jungho Choe, Junhyeok Park, Ji-Hun Yu, Sangshik Kim, Im Doo Jung, Hyokyung Sung
    Materials Characterization.2019; 155: 109817.     CrossRef
  • Nano-mechanical Behavior of H13 Tool Steel Fabricated by a Selective Laser Melting Method
    Van Luong Nguyen, Eun-ah Kim, Jaecheol Yun, Jungho Choe, Dong-yeol Yang, Hak-sung Lee, Chang-woo Lee, Ji-Hun Yu
    Metallurgical and Materials Transactions A.2019; 50(2): 523.     CrossRef
  • Correlation between Microstructure and Mechanical Properties of the Additive Manufactured H13 Tool Steel
    Woojin An, Junhyeok Park, Jungsub Lee, Jungho Choe, Im Doo Jung, Ji-Hun Yu, Sangshik Kim, Hyokyung Sung
    Korean Journal of Materials Research.2018; 28(11): 663.     CrossRef
  • Evaluation of Strain-Rate Sensitivity of Selective Laser Melted H13 Tool Steel Using Nanoindentation Tests
    Van Luong Nguyen, Eun-ah Kim, Seok-Rok Lee, Jaecheol Yun, Jungho Choe, Dong-yeol Yang, Hak-sung Lee, Chang-woo Lee, Ji-Hun Yu
    Metals.2018; 8(8): 589.     CrossRef
  • Comparison of Nano-Mechanical Behavior between Selective Laser Melted SKD61 and H13 Tool Steels
    Jaecheol Yun, Van Luong Nguyen, Jungho Choe, Dong-Yeol Yang, Hak-Sung Lee, Sangsun Yang, Ji-Hun Yu
    Metals.2018; 8(12): 1032.     CrossRef
  • A study about sculpture characteristic of SKD61 tool steel fabricated by selective laser melting(SLM) process
    Jaecheol Yun, Jungho Choe, Ki-Bong Kim, Sangsun Yang, Dong-Yeol Yang, Yong-Jin Kim, Chang-Woo Lee, Chang-Woo Lee
    Journal of Korean Powder Metallurgy Institute.2018; 25(2): 137.     CrossRef
Article image
[Korean]
Research Trend of Electrode Materials for Lithium Rechargeable Batteries
Jae-won Lee, Woo-Byoung Kim
J Korean Powder Metall Inst. 2014;21(6):473-479.   Published online December 1, 2014
DOI: https://doi.org/10.4150/KPMI.2014.21.6.473
  • 2,880 View
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  • 7 Citations
PDF

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  • A neuro-fuzzy system to evaluate the remaining useful life of the lithium-ion battery using the impedance spectrum in the overall range of SOCs
    Min-Seong Kim, Abdul Shakoor Akram, Woojin Choi
    Journal of Power Electronics.2025; 25(1): 103.     CrossRef
  • Highly Stable and Rechargeable Lithium‐Ion Battery Using a Designed Organic PTVE‐Impregnated Porous Graphitic Carbon Composite
    Ji-Won Son, Jae Seob Lee, Hyun Ho Choi, Fanglin Wu, Hong-Il Kim, Tae Ju Kang, Hyun Woo Kim, Shan Fang, Ying Liu, Jung Sang Cho, Amar Patil
    International Journal of Energy Research.2025;[Epub]     CrossRef
  • Hydrogen Reduction Behavior of NCM-based Lithium-ion Battery Cathode Materials
    So-Yeong Lee, So-Yeon Lee, Dae-Hyeon Lee, Ho-Sang Sohn
    journal of Korean Powder Metallurgy Institute.2024; 31(2): 163.     CrossRef
  • Effect of Calcination Temperature on Ionic Conductivity of All-solid State Battery Electrolytes
    Yu Taek Hong, Ji Min Im, Ki Sang Baek, Chan Gyu Kim, Seung Wook Baek, Jung Hyun Kim
    New & Renewable Energy.2024; 20(2): 71.     CrossRef
  • FeCO3/rGO Composites Prepared by CO2 Capture and Carbonate Conversion: Anode Material in Lithium-Ion Batteries with Enhanced Performance
    Sanglim Lee, Gahwi Gu, Daeung Park, Hwiyun Im, Yongjae Lee, Junseok Moon, Weonho Shin, Hiesang Sohn
    Membrane Journal.2024; 34(5): 253.     CrossRef
  • Research Trend in Rock Salt Structured High Entropy Cathode
    Minjeong Kim, Jahun Koo, Minjeong Kang, Juah Song, Chunjoong Kim
    Ceramist.2022; 25(1): 90.     CrossRef
  • Recovery of Co and Ni from Strong Acidic Solution by Cyanex 301
    Yeon-Chul Cho, Ki-Hun Kim, Jae-Woo Ahn
    Resources Recycling.2021; 30(6): 28.     CrossRef
Article image
[Korean]
The Effect of Binder Content for the Pore Properties of Fe Foam Fabricated by Slurry Coating Process
Jin Ho Choi, Sangsun Yang, Yang-Do Kim, Jung-Yeul Yun
J Korean Powder Metall Inst. 2013;20(6):439-444.
DOI: https://doi.org/10.4150/KPMI.2013.20.6.439
  • 768 View
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  • 7 Citations
AbstractAbstract PDF
Fe foam with above 90% porosity and 2 millimeter pore size was successfully fabricated by a slurry coating process. In this study, the binder contents were controlled to produce the Fe foam with different pore size, strut thickness and porosity. Firstly, the slurry was prepared by uniform mixing with Fe powders, distilled water and polyvinyl alcohol(PVA) as initial materials. After slurry coating on the polyurethane(PU) foam the sample was dried at 80°C. The PVA and PU foams were then removed by heating at 700°C for 3 hours. The debinded samples were subsequently sintered at 1250°C with holding time of 3 hours under hydrogen atmosphere. The three dimensional geometries of the obtained Fe foams with open cell structure were investigated using X-ray micro CT(computed tomography) as well as the pore morphology, size and phase.

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  • Utilization of Iron Foam as Structured Catalyst for Fischer–Tropsch Synthesis
    Yira Victoria Hurtado, Ghazal Azadi, Eduardo Lins de Barros Neto, Jean-Michel Lavoie
    Fuels.2025; 6(3): 60.     CrossRef
  • Interfacial Bonding and Abrasive Wear Behavior of Iron Matrix Composite Reinforced by Ceramic Particles
    Yefei Li, Cong Li, Shuli Tang, Qiaoling Zheng, Juan Wang, Zhibo Zhang, Zhicheng Wang
    Materials.2019; 12(22): 3646.     CrossRef
  • A Fatigue Fracture Study on TDCB Aluminum Foam Specimen of Type Mode III Bonded with Adhesive
    J.H. Lee, J.U. Cho
    Archives of Metallurgy and Materials.2017; 62(2): 1359.     CrossRef
  • Torsion Property of the Structure Bonded Aluminum Foam Due to Impact
    G.W. Hwang, J.U. Cho
    Archives of Metallurgy and Materials.2017; 62(2): 1353.     CrossRef
  • Experimental Study On Fracture Property Of Double Cantilever Beam Specimen With Aluminum Foam
    Y.C. Kim, H.K. Choi, J.U. Cho
    Archives of Metallurgy and Materials.2015; 60(2): 1151.     CrossRef
  • Experimental Study On Fracture Property Of Tapered Double Cantilever Beam Specimen With Aluminum Foam
    Y.C. Kim, S.S. Kim, J.U. Cho
    Archives of Metallurgy and Materials.2015; 60(2): 1459.     CrossRef
  • The Effect of Fe and Fe2O3Powder Mixing Ratios on the Pore Properties of Fe Foam Fabricated by a Slurry Coating Process
    Jin Ho Choi, Eun-Mi Jeong, Dahee Park, Sangsun Yang, Yoo-Dong Hahn, Jung-Yeul Yun
    Journal of Korean Powder Metallurgy Institute.2014; 21(4): 266.     CrossRef
Article image
[Korean]
Present Status and Future Prospect of Quantum Dot Technology
H.S. Hong, K.S. Park, C.G. Lee, B.S. Kim, L.S. Kang, Y.H. Jin
J Korean Powder Metall Inst. 2012;19(6):451-457.
DOI: https://doi.org/10.4150/KPMI.2012.19.6.451
  • 718 View
  • 8 Download
  • 7 Citations
AbstractAbstract PDF
Nowadays, research and development on quantum dot have been intensively and comprehensively pursued worldwide in proportion to concurrent breakthrough in the field of nanotechnology. At present, quantum dot technology forms the main interdisciplinary basis of energy, biological and photoelectric devices. More specifically, quantum dot semiconductor is quite noteworthy for its sub-micro size and possibility of photonic frequency modulation capability by controlling its size, which has not been possible with conventionally fabricated bulk or thin film devices. This could lead to realization of novel high performance devices. To further understand related background knowledge of semiconductor quantum dot at somewhat extensive level, a review paper is presently drafted to introduce basics of (semiconductor) quantum dot, its properties, applications, and present and future market trend and prospect.

Citations

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  • Charge carrier analysis via impedance spectroscopy and the achievement of high performance in CdSe/ZnS:di-[4-(N,N-di-p-tolyl-amino)-phenyl]cyclohexane hybrid quantum dot light-emitting diodes
    Dongjin Kim, Ohun Kwon, Mijin Kim, Honyeon Lee
    Organic Electronics.2022; 108: 106593.     CrossRef
  • Facile synthesis and characterization of zinc selenide nanoparticles in aqueous solution at room temperature
    Hyun Seon Hong, Mi-So Kim, Eun Kyung Byun, You Lim Lee
    Journal of Crystal Growth.2020; 535: 125523.     CrossRef
  • Study on UV Opto-Electric Properties of ZnS:Mn/ZnS Core-Shell QD
    Yun-Ji Lee, Ji-Min Cha, Chang-Bun Yoon, Seong-Eui Lee
    Journal of the Korean Ceramic Society.2018; 55(1): 55.     CrossRef
  • Surface Treatment Method for Long-term Stability of CdSe/ZnS Quantum Dots
    Hyun-Su Park, Da-Woon Jeong, Bum-Sung Kim, So-Yeong Joo, Chan-Gi Lee, Woo-Byoung Kim
    Journal of Korean Powder Metallurgy Institute.2017; 24(1): 1.     CrossRef
  • Growth mechanism of InP and InP/ZnS synthesis using colloidal synthesis
    Han wook Seo, Da-woon Jeong, Bin Lee, Seoung kyun Hyun, Bum Sung Kim
    Journal of Korean Powder Metallurgy Institute.2017; 24(1): 6.     CrossRef
  • Exact piezoelectric solution for misfitted inclusion in finite spherical matrix: Applications to quantum dot core/shell crystals
    S.Y. Seo, S.S. Yoo, D. Mishra, S.-H. Park, Y.E. Pak
    International Journal of Solids and Structures.2016; 94-95: 158.     CrossRef
  • The Status of Research of Quantum dot Using 4P Analysis -Focusing on the application and convergence field of quantum technology
    Na-Young Heo, Young-Joo Ko
    Journal of the Korea Convergence Society.2015; 6(2): 49.     CrossRef
Article image
[Korean]
High Temperature Oxidation Behavior of Ni based Porous Metal
Sung-Hwan Choi, Jung-Yeul Yun, Hye-Mun Lee, Young-Min Kong, Byoung-Kee Kim, Kee-Ahn Lee
J Korean Powder Metall Inst. 2011;18(2):122-128.
DOI: https://doi.org/10.4150/KPMI.2011.18.2.122
  • 654 View
  • 1 Download
  • 7 Citations
AbstractAbstract PDF
This study investigated the high temperature oxidation behavior of Ni-22.4%Fe-22%Cr-6%Al (wt.%) porous metal. Two types of open porous metals with different pore sizes of 30 PPI and 40 PPI (pore per inch) were used. A 24-hour TGA test was conducted at three different temperatures of 900°C, 1000°C and 1100°C. The results of the BET analysis revealed that the specific surface area increased as the pore size decreased from 30 PPI to 40 PPI. The oxidation resistance of porous metal decreased with decreasing pore size. As the temperature increased, the oxidation weight gain of the porous metal also increased. Porous metals mainly created oxides such as Al_2O_3, Cr_2O_3, NiAl_2O_4, and NiCr_2O_4. In the 40 PPI porous metal with small pore size and larger specific surface area, the depletion of stabilizing elements such as Al and Cr occurred more quickly during oxidation compared to the 30 PPI porous metal. Ni-Fe-Cr-Al porous metal's high-temperature oxidation micro-mechanism was also discussed.

Citations

Citations to this article as recorded by  
  • Effect of Strut Thickness on Room and High Temperature Compressive Properties of Block-Type Ni-Cr-Al Powder Porous Metals
    B.-H. Kang, M.-H. Park, K.-A. Lee
    Archives of Metallurgy and Materials.2017; 62(2): 1329.     CrossRef
  • Fabrication of metallic alloy powder (Ni3Fe) from Fe–77Ni scrap
    Inseok Seo, Shun-Myung Shin, Sang-An Ha, Jei-Pil Wang
    Journal of Alloys and Compounds.2016; 670: 356.     CrossRef
  • Preparation of oxide powder by continuous oxidation process from recycled Fe-77Ni alloy scrap
    J Y Yun, D H Park, G J Jung, J P Wang
    IOP Conference Series: Materials Science and Engineering.2015; 103: 012026.     CrossRef
  • Reduction of High Nickel-Based Oxide Particles Using Hydrogen Gas
    Sung Ho Joo, Shun Myung Shin, Dong Ju Shin, Jei Pil Wang
    Applied Mechanics and Materials.2015; 778: 148.     CrossRef
  • Fabrication of oxide powder from Fe–46Ni alloy scrap
    J.-Y. Yun, D.-W. Lee, S.-M. Shin, J.-P. Wang
    Materials Research Innovations.2015; 19(sup5): S5-415.     CrossRef
  • Evaluation of Creep Reliability of Powder Metallurgy and Cast-type Ni-based Superalloy by Using Ultrasonic Wave
    Chan-Yang Choi, Jin-Hun Song, Se-Ung Oh, Chung-Seok Kim, Sook-In Kwun, Sung-Tag Oh, Chang-Yong Hyun, Jai-Won Byeon
    Journal of Korean Powder Metallurgy Institute.2012; 19(3): 215.     CrossRef
  • Effect of Sintering Temperature on the High Temperature Oxidation of Fe-Cr-Al Powder Porous Metal Manufactured by Electrospray Process
    Jae-Sung Oh, Young-Min Kong, Byoung-Kee Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2012; 19(6): 435.     CrossRef
Article image
[Korean]
Hydrogenation Behavior of Sponge Titanium
Ji-Hwan Park, Dong-Won Lee, Jong-Ryoul Kim
J Korean Powder Metall Inst. 2010;17(5):385-389.
DOI: https://doi.org/10.4150/KPMI.2010.17.5.385
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  • 7 Citations
AbstractAbstract PDF
Titanium powders have been usually produced by de-hydrogenating treatment in vacuum with titanium hydride (TiH_2) powders prepared by milling of hydrogenated sponge titanium, TiH_x. The higher stoichiometry of x in TiH_x, whose maximum value is 2, is achieved, crushing behavior is easier. TiH_x powder can be, therefore, easy to manufactured leading to obtain higher recovery factor of it. In addition, contamination of the powder can also minimized by the decrease of milling time. In this study, the hydrogenation behavior of sponge titanium was studied to find the maximum stoichiometry. The maximum stoichiometry in hydride formation of sponge titanium could be obtained at 750°C for 2 hrs leading to the formation of TiH_sim1.99 and the treating temperatures lower or higher than 750°C caused the poor stoichiometries by the low hydrogen diffusivity and un-stability of TiH_x, respectively. Such experimental behavior was compared with thermodynamically calculated one. The hydrogenated TiH_1.99 sponge was fully ball-milled under -325 Mesh and the purity of pure titanium powders obtained by de-hydrogenation was about 99.6%.

Citations

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  • Effect of Ball Milling Conditions on the Microstructure and Dehydrogenation Behavior of TiH2 Powder
    Ji Young Kim, Eui Seon Lee, Ji Won Choi, Youngmin Kim, Sung-Tag Oh
    journal of Korean Powder Metallurgy Institute.2024; 31(2): 132.     CrossRef
  • Study on Manufacture of High Purity TiCl4 and Synthesis of High Purity Ti Powders
    Jieun Lee, Jin-Ho Yoon, Chan Gi Lee
    Journal of Korean Powder Metallurgy Institute.2019; 26(4): 282.     CrossRef
  • Effect of Heat Treatment Temperature and Atmosphere on the Microstructure of TiH2-WO3 Powder Mixtures
    Han-Eol Lee, Yeon Su Kim, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2017; 24(1): 41.     CrossRef
  • Titanizing on the surface of iron metal foam
    Su-In Lee, Jung-Yeul Yun, Tae-Soo Lim, Byoung-Kee Kim, Young-Min Kong, Jei-Pil Wang, Dong-Won Lee
    Thermochimica Acta.2014; 581: 87.     CrossRef
  • Study on synthesis of Zr–Ti alloy powder using molten magnesium
    D.-W. Lee, Y.-K. Baek, W.-J. Lee, J.-P. Wang
    Materials Research Innovations.2013; 17(sup2): s113.     CrossRef
  • Direct synthesis of zirconium powder by magnesium reduction
    Dong-Won Lee, Jung-Yeul Yun, Sung-Won Yoon, Jei-Pil Wang
    Metals and Materials International.2013; 19(3): 527.     CrossRef
  • Synthesis of Zr-Ti Alloy Powder by Magnesium Reduction
    Dong-Won Lee, Geun-Tae Park, Tae-Soo Lim, Hye-Moon Lee, Ji-Hun Yu
    Journal of Korean Powder Metallurgy Institute.2011; 18(4): 359.     CrossRef
Article image
[Korean]
Effect of Sintering Temperature on Microstructure and Mechanical Properties for the Spark Plasma Sintered Titanium from CP-Ti Powders
Kyeong-Sik Cho, In-Beom Song, Min-Hyeok Jang, Ji-Hye Yoon, Myung-Hoon Oh, Jae-Keun Hong, Nho-Kwang Park
J Korean Powder Metall Inst. 2010;17(5):365-372.
DOI: https://doi.org/10.4150/KPMI.2010.17.5.365
  • 746 View
  • 6 Download
  • 7 Citations
AbstractAbstract PDF
The evolution of sinterability, microstructure and mechanical properties for the spark plasma sintered(SPS) Ti from commercial pure titanium(CP-Ti) was studied. The densification of titanium with 200 mesh and 400 mesh pass powder was achieved by SPS at 750sim1100°C under 10 MPa pressure and the flowing H_2+Ar mixed gas atmosphere. The microstructure of Ti sintered up to 800°C consisted of equiaxed grains. In contrast, the growth of large elongated grains was shown in sintered bodies at 900°C with the 400 mesh pass powder and the lamella grains microstructure had been developed by increasing sintering temperature. The Vickers hardness of 240~270 HV and biaxial strength of 320~340 MPa were found for the specimen prepared at 950°C.

Citations

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  • Sintering pressure effect on the performances of near-zero thermal expansion xLFCS/Cu metal matrix composites
    Chang Zhou, Hong Zhong, Hao Lu, Xuelu Pang, Congfa Zhang, Haowu Wang, Qiang Cong, Yuzhu Song, Naike Shi, Jiong Zhao, Xiangxu Meng, Jun Chen
    Ceramics International.2023; 49(17): 27958.     CrossRef
  • Spark plasma sintered Al-0.5 wt% MWCNT nanocomposite: Effect of sintering pressure on the densification behavior and multi-scale mechanical properties
    Lavish K. Singh, Alok Bhadauria, Akash Oraon, Tapas Laha
    Diamond and Related Materials.2019; 91: 144.     CrossRef
  • Manufacturing and Properties of CGI-based Composite Coating Layer Utilizing a Warm Spray Process and Cu-Ga and Cu-In Mixed Powders
    Min-Gwang Jeon, Myeong-Ju Lee, Hyeong-Jun Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2014; 21(3): 229.     CrossRef
  • Effect of particle size distribution on microstructure and mechanical properties of spark-plasma-sintered titanium from CP-Ti powders
    Je Ha Shon, In-Beom Song, Kyeong-Sik Cho, Yong-il Park, Jae-Keun Hong, Nho-Kwang Park, Myung-Hoon Oh
    International Journal of Precision Engineering and Manufacturing.2014; 15(4): 643.     CrossRef
  • Effects of various sintering methods on microstructure and mechanical properties of CP-Ti powder consolidations
    Je-ha SHON, Jong-moon PARK, Kyeong-sik CHO, Jae-keun HONG, Nho-kwang PARK, Myung-hoon OH
    Transactions of Nonferrous Metals Society of China.2014; 24: s59.     CrossRef
  • Sintering and Rolling Behavior of Cu-50In-13Ga Ternary Alloy Powder for Sputtering Target
    Dae-Won Kim, Yong-Ho Kim, Jung-Han Kim, Dae-Guen Kim, Jong-Hyeon Lee, Kwang-Bo Choi, Hyeon-Taek Son
    Journal of Korean Powder Metallurgy Institute.2012; 19(4): 264.     CrossRef
  • Effect of Heat Treatment Environment on the Properties of Cold Sprayed Cu-15 at.%Ga Coating Material for Sputtering Target
    Byung-Chul Choi, Dong-Yong Park, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2011; 18(6): 552.     CrossRef
Articles
Article image
[Korean]
Effect of Bulk Shape on Mechanical Properties of Ti-6Al-4V Alloy Manufactured by Laser Powder Bed Fusion
Haeum Park, Yeon Woo Kim, Seungyeon Lee, Kyung Tae Kim, Ji-Hun Yu, Jung Gi Kim, Jeong Min Park
J Powder Mater. 2023;30(2):140-145.   Published online April 1, 2023
DOI: https://doi.org/10.4150/KPMI.2023.30.2.140
  • 2,162 View
  • 29 Download
  • 6 Citations
AbstractAbstract PDF

Although the Ti–6Al–4V alloy has been used in the aircraft industry owing to its excellent mechanical properties and low density, the low formability of the alloy hinders broadening its applications. Recently, laser-powder bed fusion (L-PBF) has become a novel process for overcoming the limitations of the alloy (i.e., low formability), owing to the high degree of design freedom for the geometry of products having outstanding performance used in hightech applications. In this study, to investigate the effect of bulk shape on the microstructure and mechanical properties of L-PBFed Ti-6Al-4V alloys, two types of samples are fabricated using L-PBF: thick and thin samples. The thick sample exhibits lower strength and higher ductility than the thin sample owing to the larger grain size and lower residual dislocation density of the thick sample because of the heat input during the L-PBF process.

Citations

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  • Effect of Support Structure on Residual Stress Distribution in Ti-6Al-4V Alloy Fabricated by Laser Powder Bed Fusion
    Seungyeon Lee, Haeum Park, Min Jae Baek, Dong Jun Lee, Jae Wung Bae, Ji-Hun Yu, Jeong Min Park
    Journal of Powder Materials.2025; 32(3): 244.     CrossRef
  • Cryogenic Tensile Behavior of Ferrous Medium-entropy Alloy Additively Manufactured by Laser Powder Bed Fusion
    Seungyeon Lee, Kyung Tae Kim, Ji-Hun Yu, Hyoung Seop Kim, Jae Wung Bae, Jeong Min Park
    journal of Korean Powder Metallurgy Institute.2024; 31(1): 8.     CrossRef
  • Microstructural Evolution and Mechanical Properties of Ti-6Al-4V Alloy through Selective Laser Melting: Comprehensive Study on the Effect of Hot Isostatic Pressing (HIP)
    Gargi Roy, Raj Narayan Hajra, Woo Hyeok Kim, Jongwon Lee, Sangwoo Kim, Jeoung Han Kim
    journal of Korean Powder Metallurgy Institute.2024; 31(1): 1.     CrossRef
  • Data-driven Approach to Explore the Contribution of Process Parameters for Laser Powder Bed Fusion of a Ti-6Al-4V Alloy
    Jeong Min Park, Jaimyun Jung, Seungyeon Lee, Haeum Park, Yeon Woo Kim, Ji-Hun Yu
    journal of Korean Powder Metallurgy Institute.2024; 31(2): 137.     CrossRef
  • A Parametric Study on the L-PBF Process of an AlSi10Mg Alloy for High-Speed Productivity of Automotive Prototype Parts
    Yeonha Chang, Hyomoon Joo, Wanghyun Yong, Yeongcheol Jo, Seongjin Kim, Hanjae Kim, Yeon Woo Kim, Kyung Tae Kim, Jeong Min Park
    Journal of Powder Materials.2024; 31(5): 390.     CrossRef
  • High-speed manufacturing-driven strength-ductility improvement of H13 tool steel fabricated by selective laser melting
    Yeon Woo Kim, Haeum Park, Young Seong Eom, Dong Gill Ahn, Kyung Tae Kim, Ji-hun Yu, Yoon Suk Choi, Jeong Min Park
    Powder Metallurgy.2023; 66(5): 582.     CrossRef
Article image
[English]
Effect of Oxidation Behavior of (Nd,Dy)-Fe-B Magnet on Heavy Rare Earth Extraction Process
Sangmin Park, Sun-Woo Nam, Sang-Hoon Lee, Myung-Suk Song, Taek-Soo Kim
J Korean Powder Metall Inst. 2021;28(2):91-96.   Published online April 1, 2021
DOI: https://doi.org/10.4150/KPMI.2021.28.2.91
  • 1,398 View
  • 19 Download
  • 6 Citations
AbstractAbstract PDF

Rare earth magnets with excellent magnetic properties are indispensable in the electric device, wind turbine, and e-mobility industries. The demand for the development of eco-friendly recycling techniques has increased to realize sustainable green technology, and the supply of rare earth resources, which are critical for the production of permanent magnets, are limited. Liquid metal extraction (LME), which is a type of pyrometallurgical recycling, is known to selectively extract the metal forms of rare earth elements. Although several studies have been carried out on the formation of intermetallic compounds and oxides, the effect of oxide formation on the extraction efficiency in the LME process remains unknown. In this study, microstructural and phase analyses are conducted to confirm the oxidation behavior of magnets pulverized by a jaw crusher. The LME process is performed with pulverized scrap, and extraction percentages are calculated to confirm the effect of the oxide phases on the extraction of Dy during the reaction. During the LME p rocess, Nd i s completely e xtracted a fter 6 h, w hile D y remains as D y2Fe17 and Dy-oxide. Because the decomposition rate of Dy2Fe17 is faster than the reduction rate of Dy-oxide, the importance of controlling Dy-oxide on Dy extraction is confirmed.

Citations

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  • Manipulation of reactivity based on metallic adsorption in magnesium alloy scraps for rare-earth recycling by liquid metal extraction
    Sangmin Park, Yoonhyung Keum, Jaeyun Jeong, Seunghun Cha, Ju-Young Cho, Hyunchul Kim, Jiseong Lee, Taek-Soo Kim, Dae-Kyeom Kim, Myungsuk Song
    Journal of Alloys and Compounds.2025; 1022: 178711.     CrossRef
  • A Review of the Current Progress in High-Temperature Recycling Strategies for Recovery of Rare-Earth Elements from Magnet Waste
    Ali Zakeri, Leili Tafaghodi
    Journal of Sustainable Metallurgy.2025; 11(1): 88.     CrossRef
  • Selective growth of Nb–Fe–B intermetallic compounds for the direct separation of rare earths based on manipulating liquation
    Sangmin Park, Jaeyun Jeong, Seunghun Cha, Yoonhyung Keum, Ju-Young Cho, Hyungbeen Park, Taek-Soo Kim, Dae-Kyeom Kim, Myungsuk Song
    Materials Today Sustainability.2024; 28: 101042.     CrossRef
  • Separation and recovery Nd and Dy from Mg-REEs alloy by vacuum distillation
    Sangmin Park, Dae-Kyeom Kim, Jaeyun Jeong, Jae Hong Shin, Yujin Kang, Rongyu Liu, Taek-Soo Kim, Myungsuk Song
    Journal of Alloys and Compounds.2023; 967: 171775.     CrossRef
  • The Supported Boro-Additive Effect for the Selective Recovery of Dy Elements from Rare-Earth-Elements-Based Magnets
    Sangmin Park, Dae-Kyeom Kim, Javid Hussain, Myungsuk Song, Taek-Soo Kim
    Materials.2022; 15(9): 3032.     CrossRef
  • Influence of Dysprosium Compounds on the Extraction Behavior of Dy from Nd-Dy-Fe-B Magnet Using Liquid Magnesium
    Sun-Woo Nam, Sang-Min Park, Mohammad Zarar Rasheed, Myung-Suk Song, Do-Hyang Kim, Taek-Soo Kim
    Metals.2021; 11(9): 1345.     CrossRef
Article image
[Korean]
Investigation on the Thermoelectric Properties of Bismuth Telluride Matrix Composites by Addition of Graphene Oxide Powders
Kyung Tae Kim, Taesik Min, Dong Won Kim
J Korean Powder Metall Inst. 2016;23(4):263-269.   Published online August 1, 2016
DOI: https://doi.org/10.4150/KPMI.2016.23.4.263
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AbstractAbstract PDF

Graphene oxide (GO) powder processed by Hummer's method is mixed with p-type Bi2Te3 based thermoelectric materials by a high-energy ball milling process. The synthesized GO-dispersed p-type Bi2Te3 composite powder has a composition of Bi0.5Sb1.5Te3 (BSbT), and the powder is consolidated into composites with different contents of GO powder by using the spark plasma sintering (SPS) process. It is found that the addition of GO powder significantly decreases the thermal conductivity of the pure BSbT material through active phonon scattering at the newly formed interfaces. In addition, the electrical properties of the GO/BSbT composites are degraded by the addition of GO powder except in the case of the 0.1 wt% GO/BSbT composite. It is found that defects on the surface of GO powder hinder the electrical transport properties. As a result, the maximum thermoelectric performance (ZT value of 0.91) is achieved from the 0.1% GO/BSbT composite at 398 K. These results indicate that introducing GO powder into thermoelectric materials is a promising method to achieve enhanced thermoelectric performance due to the reduction in thermal conductivity.

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  • Nanocomposite Strategy toward Enhanced Thermoelectric Performance in Bismuth Telluride
    Hua‐Lu Zhuang, Jincheng Yu, Jing‐Feng Li
    Small Science.2025;[Epub]     CrossRef
  • Exploring Thermoelectric Transport Properties and Band Parameters of n-Type Bi2-xSbxTe3 Compounds Using the Single Parabolic Band Model
    Linh Ba Vu, Soo-ho Jung, Jinhee Bae, Jong Min Park, Kyung Tae Kim, Injoon Son, Seungki Jo
    journal of Korean Powder Metallurgy Institute.2024; 31(2): 119.     CrossRef
  • Enhancing Electrical Properties of N-type Bismuth Telluride Alloys through Graphene Oxide Incorporation in Extrusion 3D Printing
    Jinhee Bae, Seungki Jo, Kyung Tae Kim
    journal of Korean Powder Metallurgy Institute.2023; 30(4): 318.     CrossRef
  • Advancement of thermoelectric performances through the dispersion of expanded graphene on p-type BiSbTe alloys
    Eun-Ha Go, Rathinam Vasudevan, Babu Madavali, Peyala Dharmaiah, Min-Woo Shin, Sung Ho Song, Soon-Jik Hong
    Powder Metallurgy.2023; 66(5): 722.     CrossRef
  • The role of edge-oxidized graphene to improve the thermopower of p-type bismuth telluride-based thick films
    Young Min Cho, Kyung Tae Kim, Gi Seung Lee, Soo Hyung Kim
    Applied Surface Science.2019; 476: 533.     CrossRef
  • The Preparation and Growth Mechanism of the Recovered Bi2Te3 Particles with Respect to Surfactants
    Hyeongsub So, Eunpil Song, Yong-Ho Choa, Kun-Jae Lee
    Journal of Korean Powder Metallurgy Institute.2017; 24(2): 141.     CrossRef
Research Article
Article image
[English]
Effects of Hydrogen Reduction in Microstructure, Mechanical and Thermoelectric Properties of Gas Atomized n-type Bi2Te2.7 Se0.3 Material
Pradip Rimal, Sang-Min Yoon, Eun-Bin Kim, Chul-Hee Lee, Soon-Jik Hong
J Korean Powder Metall Inst. 2016;23(2):126-131.   Published online April 1, 2016
DOI: https://doi.org/10.4150/KPMI.2016.23.2.126
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AbstractAbstract PDF

The recent rise in applications of thermoelectric materials has attracted interest in studies toward the fabrication of thermoelectric materials using mass production techniques. In this study, we successfully fabricate n-type Bi2Te2.7Se0.3 material by a combination of mass production powder metallurgy techniques, gas atomization, and spark plasma sintering. In addition, to examine the effects of hydrogen reduction in the microstructure, the thermoelectric and mechanical properties are measured and analyzed. Here, almost 60% of the oxygen content of the powder are eliminated after hydrogen reduction for 4 h at 360°C. Micrographs of the powder show that the reduced powder had a comparatively clean surface and larger grain sizes than unreduced powder. The density of the consolidated bulk using as-atomized powder and reduced atomized powder exceeds 99%. The thermoelectric power factor of the sample prepared by reduction of powder is 20% better than that of the sample prepared using unreduced powder.

Citations

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  • Tuning of power factor in bismuth selenide through Sn/Te co doping for low temperature thermoelectric applications
    Ganesh Shridhar Hegde, Ashwatha Narayana Prabhu, Ramakrishna Nayak, C. F. Yang, Y. K. Kuo
    Applied Physics A.2024;[Epub]     CrossRef
  • Enhancing thermoelectric performance of K-doped polycrystalline SnSe through band engineering tuning and hydrogen reduction
    Nan Xin, Yifei Li, Guihua Tang, Longyun Shen
    Journal of Alloys and Compounds.2022; 899: 163358.     CrossRef
  • The effect of powder pre-treatment on the mechanical and thermoelectric properties of spark plasma sintered N-type bismuth telluride
    Ahmed A. Abdelnabi, Vickram Lakhian, Joseph R. McDermid, James S. Cotton
    Journal of Alloys and Compounds.2021; 874: 159782.     CrossRef
  • Investigation of Spark Plasma Sintering Temperature on Microstructure and Thermoelectric Properties of p-type Bi-Sb-Te alloys
    Jin-Koo Han, Dong-won Shin, Babu Madavali, Soon-Jik Hong
    Journal of Korean Powder Metallurgy Institute.2017; 24(2): 115.     CrossRef
  • The Preparation and Growth Mechanism of the Recovered Bi2Te3 Particles with Respect to Surfactants
    Hyeongsub So, Eunpil Song, Yong-Ho Choa, Kun-Jae Lee
    Journal of Korean Powder Metallurgy Institute.2017; 24(2): 141.     CrossRef
  • Enhanced thermoelectric cooling properties of Bi2Te3−xSex alloys fabricated by combining casting, milling and spark plasma sintering
    Seung Tek Han, Pradip Rimal, Chul Hee Lee, Hyo-Seob Kim, Yongho Sohn, Soon-Jik Hong
    Intermetallics.2016; 78: 42.     CrossRef
Article image
[English]
Synthesis and Thermoelectric Properties of Carbon Nanotube-Dispersed Bi2Te3 Matrix Composite Powders by Chemical Routes
Kyung Tae Kim, Injoon Son, Gook Hyun Ha
J Korean Powder Metall Inst. 2013;20(5):345-349.
DOI: https://doi.org/10.4150/KPMI.2013.20.5.345
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AbstractAbstract PDF
Carbon nanotube-dispersed bismuth telluride matrix (CNT/Bi_2Te_3) nanopowders were synthesized by chemical routes followed by a ball-milling process. The microstructures of the synthesized CNT/Bi_2Te_3 nanopowders showed the characteristic microstructure of CNTs dispersed among disc-shaped Bi_2Te_3 nanopowders with as an average size of 500 nm in-plane and a few tens of nm in thickness. The prepared nanopowders were sintered into composites with a homogeneous dispersion of CNTs in a Bi_2Te_3 matrix. The dimensionless figure-of-merit of the composite showed an enhanced value compared to that of pure Bi_2Te_3 at the room temperature due to the reduced thermal conductivity and increased electrical conductivity with the addition of CNTs.

Citations

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  • Effect of Surface Roughness and Electroless Ni–P Plating on the Bonding Strength of Bi–Te-based Thermoelectric Modules
    Sung Hwa Bae, Sungsoon Kim, Seong Hoon Yi, Injoon Son, Kyung Tae Kim, Hoyong Chung
    Coatings.2019; 9(3): 213.     CrossRef
  • Simple approach to synthesize CNTs uniformly coated Bi2Te3 nanocomposites by mechanical alloying
    Balaji Ketharachapalli, Raj Kishora Dash
    Applied Nanoscience.2018; 8(8): 1887.     CrossRef
  • Fabrication of flexible SWCNTs-Te composite films for improving thermoelectric properties
    Changcun Li, Pengliang Sun, Congcong Liu, Jingkun Xu, Tongzhou Wang, Wenfang Wang, Jian Hou, Fengxing Jiang
    Journal of Alloys and Compounds.2017; 723: 642.     CrossRef
  • Effects of Hydrogen Reduction in Microstructure, Mechanical and Thermoelectric Properties of Gas Atomized <italic>n</italic>-type Bi2Te2.7 Se0.3 Material
    Pradip Rimal, Sang-Min Yoon, Eun-Bin Kim, Chul-Hee Lee, Soon-Jik Hong
    journal of Korean Powder Metallurgy Institute.2016; 23(2): 126.     CrossRef
  • High thermoelectric performance of Bi-Te alloy: Defect engineering strategy
    Jong Gil Park, Young Hee Lee
    Current Applied Physics.2016; 16(9): 1202.     CrossRef
  • Investigation on the Thermoelectric Properties of Bismuth Telluride Matrix Composites by Addition of Graphene Oxide Powders
    Kyung Tae Kim, Taesik Min, Dong Won Kim
    Journal of Korean Powder Metallurgy Institute.2016; 23(4): 263.     CrossRef
Article image
[English]
Fabrication of Fe-TiC Composite by High-Energy Milling and Spark-Plasma Sintering
N.Q. Tuan, H.X. Khoa, N.H. Vieta, Y.H. Lee, B.H. Lee, J.S. Kim
J Korean Powder Metall Inst. 2013;20(5):338-344.
DOI: https://doi.org/10.4150/KPMI.2013.20.5.338
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AbstractAbstract PDF
Fe-TiC composite was fabricated from Fe and TiC powders by high-energy milling and subsequent spark-plasma sintering. The microstructure, particle size and phase of Fe-TiC composite powders were investigated by field emission scanning electron microscopy and X-ray diffraction to evaluate the effect of milling conditions on the size and distribution of TiC particles in Fe matrix. TiC particle size decreased with milling time. The average TiC particle size of 38 nm was obtained after 60 minutes of milling at 1000 rpm. Prepared Fe-TiC powder mixture was densified by spark-plasma sintering. Sintered Fe-TiC compacts showed a relative density of 91.7~96.2%. The average TiC particle size of 150 nm was observed from the FE-SEM image. The microstructure, densification behavior, Vickers hardness, and fracture toughness of Fe-TiC sintered compact were investigated.

Citations

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  • Synthesis of Cu-based TiCx composites via in-situ reaction between CuxTi melt and dissolvable solid carbon
    Lei Guo, Yang Yang, Xiaochun Wen, Han Gao, Zhe Wang, Zhancheng Guo
    Powder Technology.2020; 362: 375.     CrossRef
  • Microstructure and Electrical Property of Ex-Situ and In-Situ Copper Titanium Carbide Nanocomposites
    Nguyen Hoang Viet, Nguyen Thi Hoang Oanh
    Metals.2020; 10(6): 735.     CrossRef
  • Kinetic Models for the in Situ Reaction between Cu-Ti Melt and Graphite
    Lei Guo, Xiaochun Wen, Zhancheng Guo
    Metals.2020; 10(2): 267.     CrossRef
  • Fabrication of core‐shell structured TiC–Fe composite powders by fluidized bed chemical vapor deposition
    Cheng Liu, Yafeng Yang, Pengpeng Lv, Junjie Guo, Maoqiao Xiang, Qingshan Zhu
    Journal of the American Ceramic Society.2019; 102(8): 4470.     CrossRef
  • Effect of mechanical alloying on the synthesis of Fe-TiC nanocomposite
    Ali Reza Jam, Mansour Razavi, Leila Nikzad
    Science and Engineering of Composite Materials.2017; 24(5): 739.     CrossRef
  • Synthesis and analysis of nanocrystalline β1-Cu3Al and β2-NiAl intermetallic-reinforced aluminum matrix composite by high energy ball milling
    Hong-Hai Nguyen, Minh-Thuyet Nguyen, Won Joo Kim, Jin-Chun Kim
    Metals and Materials International.2017; 23(1): 202.     CrossRef
Article image
[Korean]
Effects of Powder Morphology and Powder Preheating on the Properties and Deposition Behavior of Titanium Coating Layer Manufactured by Cold Spraying
Jae-Nam Hwang, Myeong-Ju Lee, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
J Korean Powder Metall Inst. 2012;19(5):348-355.
DOI: https://doi.org/10.4150/KPMI.2012.19.5.348
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AbstractAbstract PDF
Cold spray deposition using Titanium powder was carried out to investigate the effects of powder morphology and powder preheating on the coating properties such as porosity and hardness. The in-flight particle velocity of Ti powder in cold spray process was directly measured using the PIV (particle image velocimetry) equipment. Two types of powders (spherical and irregular ones) were used to manufacture cold sprayed coating layer. The results showed that the irregular morphology particle appeared higher in-flight particle velocity than that of the spherical one under the same process condition. The coating layer using irregular morphology powder represented lower porosity level and higher hardness. Two different preheating conditions (no preheating and preheating at 500°C) were used in the process of cold spraying. The porosity decreased and the hardness increased by conducting preheating at 500°C. It was found that the coating properties using different preheating conditions were dependent not on the particle velocity but on the deformation temperature of particle. The deposition mechanism of particles in cold spray process was also discussed based on the experimental results of in flight-particle velocity.

Citations

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  • Solid-state cold spray additive manufacturing of pure tantalum with extraordinary high-temperature mechanical properties
    Young-Kyun Kim, Hyung-Jun Kim, Kee-Ahn Lee
    Journal of Materials Research and Technology.2023; 23: 5698.     CrossRef
  • Effect of Fe Content on the Microstructure and Mechanical Properties of Ti-Al-Mo-V-Cr-Fe Alloys
    K.C. Bae, J.J. Oak, Y.H. Kim, Y.H. Park
    Archives of Metallurgy and Materials.2017; 62(2): 1105.     CrossRef
  • Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process
    Y.M. Shin, J.-H. Lee
    Archives of Metallurgy and Materials.2015; 60(2): 1247.     CrossRef
  • Property Evaluation of Kinetic Sprayed Al-Ni Composite Coatings
    GyeongJun Byun, JaeIck Kim, Changhee Lee, SeeJo Kim, Seong Lee
    Journal of Welding and Joining.2014; 32(5): 72.     CrossRef
  • Manufacturing and Properties of CGI-based Composite Coating Layer Utilizing a Warm Spray Process and Cu-Ga and Cu-In Mixed Powders
    Min-Gwang Jeon, Myeong-Ju Lee, Hyeong-Jun Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2014; 21(3): 229.     CrossRef
  • Effect of Carrier Gases on the Microstructure and Properties of Ti Coating Layers Manufactured by Cold Spraying
    Myeong-Ju Lee, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2013; 20(1): 24.     CrossRef
Article image
[English]
Effect of Process Conditions on the Microstructure of Particle-Stabilized Al2O3 Foam
Rizwan Ahmad, Jang-Hoon Ha, Yoo-Dong Hahn, In-Hyuck Song
J Korean Powder Metall Inst. 2012;19(4):278-284.
DOI: https://doi.org/10.4150/KPMI.2012.19.4.278
  • 608 View
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  • 6 Citations
AbstractAbstract PDF
Al_2O_3 foam is an important engineering material because of its exceptional high-temperature stability, low thermal conductivity, good wear resistance, and stability in hostile chemical environment. In this work, Al_2O_3 foams were designed to control the microstructure, porosity, and cell size by varying different parameters such as the amount of amphiphile, solid loading, and stirring speed. Particle stabilized direct foaming technique was used and the Al_2O_3 particles were partially hydrophobized upon the adsorption of valeric acid on particles surface. The foam stability was drastically improved when these particles were irreversibly adsorbed at the air/water interface. However, there is still considerable ambiguity with regard to the effect of process parameters on the microstructure of particle-stabilized foam. In this study, the Al_2O_3 foam with open and closed-cell structure, cell size ranging from 20µm to 300µm having single strut wall and porosity from 75% to 93% were successfully fabricated by sintering at 1600°C for 2 h in air.

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  • A Fatigue Fracture Study on TDCB Aluminum Foam Specimen of Type Mode III Bonded with Adhesive
    J.H. Lee, J.U. Cho
    Archives of Metallurgy and Materials.2017; 62(2): 1359.     CrossRef
  • Torsion Property of the Structure Bonded Aluminum Foam Due to Impact
    G.W. Hwang, J.U. Cho
    Archives of Metallurgy and Materials.2017; 62(2): 1353.     CrossRef
  • Experimental Study On Fracture Property Of Double Cantilever Beam Specimen With Aluminum Foam
    Y.C. Kim, H.K. Choi, J.U. Cho
    Archives of Metallurgy and Materials.2015; 60(2): 1151.     CrossRef
  • Experimental Study On Fracture Property Of Tapered Double Cantilever Beam Specimen With Aluminum Foam
    Y.C. Kim, S.S. Kim, J.U. Cho
    Archives of Metallurgy and Materials.2015; 60(2): 1459.     CrossRef
  • Processing Methods for the Preparation of Porous Ceramics
    Rizwan Ahmad, Jang-Hoon Ha, In-Hyuck Song
    Journal of Korean Powder Metallurgy Institute.2014; 21(5): 389.     CrossRef
  • Effect of valeric acid on the agglomeration of zirconia particles and effects of the sintering temperature on the strut wall thickness of particle-stabilized foam
    Rizwan Ahmad, Jang-Hoon Ha, In-Hyuck Song
    Journal of the European Ceramic Society.2014; 34(5): 1303.     CrossRef
Article image
[Korean]
Ultrafine Grained Cu-diamond Composites using High Pressure Torsion
Eun-Yoo Yoon, Dong-Jun Lee, Taek-Soo Kim, Hyoung-Seop Kim
J Korean Powder Metall Inst. 2012;19(3):204-209.
DOI: https://doi.org/10.4150/KPMI.2012.19.3.204
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AbstractAbstract PDF
In this work, powder metallurgy and severe plastic deformation by high-pressure torsion (HPT) approaches were combined to achieve both full density and grain refinement at the same time. Pure Cu powders were mixed with 5 and 10 vol% diamonds and consolidated into disc-shaped samples at room temperature by HPT at 1.25 GPa and 1 turn, resulting in ultrafine grained metallic matrices embedded with diamonds. Neither heating nor additional sintering was required with the HPT process so that in situ consolidation was successfully achieved at ambient temperature. Significantly refined grain structures of Cu metallic matrices with increasing diamond volume fractions were observed by electron backscatter diffraction (EBSD), which enhanced the microhardness of the Cu-diamond composites.

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  • Effect of a nano-sized TiC particle addition on the flow-assisted corrosion resistance of SA 106B carbon steel
    Jin-Ju Park, Eun-Kwang Park, Gyoung-Ja Lee, Chang-Kyu Rhee, Min-Ku Lee
    Applied Surface Science.2017; 415: 143.     CrossRef
  • Analyses of Densification and Consolidation of Copper Powders during High-Pressure Torsion Process Using Finite Element Method
    Dong Jun Lee, Eun Yoo Yoon
    Journal of Korean Powder Metallurgy Institute.2015; 22(1): 6.     CrossRef
  • Trend in Research of Powder Consolidation Using Severe Plastic Deformation
    Eun Yoo Yoon, Dong Jun Lee, Dong-Hyun Ahn, Hyuk Jae Jeong, Hyoung Seop Kim
    Journal of Korean Powder Metallurgy Institute.2013; 20(2): 148.     CrossRef
  • Microstructure Evolution and Mechanical Properties of Al-1080 Processed by a Combination of Equal Channel Angular Pressing and High Pressure Torsion
    Mohamed Ibrahim Abd El Aal, Eun Yoo Yoon, Hyoung Seop Kim
    Metallurgical and Materials Transactions A.2013; 44(6): 2581.     CrossRef
  • Grinding Behaviour of Aluminum Powder for Al/CNTs Nano Composites Fabrication by Dry Grinding Process Using a High Speed Planetary Ball Mill
    Heekyu Choi, Jehyun Lee, Seongsoo Kim, Gyungpil Choi, Daehyung Bae, Sungbak Lee, Woong Lee
    Korean Journal of Materials Research.2013; 23(2): 89.     CrossRef
  • Densification of Copper Powders using High-pressure Torsion Process
    Dong-Jun Lee, Eun-Yoo Yoon, Soo-Young Kang, Jung-Hwan Lee, Hyoung-Seop Kim
    Journal of Korean Powder Metallurgy Institute.2012; 19(5): 333.     CrossRef
Article image
[Korean]
Effect of Heat Treatment Environment on the Densification of Cold Sprayed Ti Coating Layer
Ji-Sang Yu, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
J Korean Powder Metall Inst. 2012;19(2):110-116.
DOI: https://doi.org/10.4150/KPMI.2012.19.2.110
  • 599 View
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AbstractAbstract PDF
This study investigated the effects of annealing environment for the densification and purification properties of pure titanium coating layer manufactured by cold spraying. The annealing was conducted at 600°C/1 h and three kinds of environments of vacuum, Ar gas, and 5%H_2+Ar mixture gas were controlled. Cold sprayed Ti coating layer (as sprayed) represented 6.7% of porosity and 228 HV of hardness, showing elongated particle shapes (severe plastic deformation) perpendicular to injection direction. Regardless of gas environments, all thermally heat treated coating layers consisted of pure alpha-Ti and minimal oxide. Vacuum environment during heat treatment represented superior densification properties (3.8% porosity, 156.7 HV) to those of Ar gas (5.3%, 144.5 HV) and 5%H_2+Ar mixture gas (5.5%, 153.1 HV). From the results of phase analysis (XRD, EPMA, SEM, EDS), it was found that the vacuum environment during heat treatment could be effective for reducing oxide contents (purification) in the Ti coating layer. The characteristic of microstructural evolution with heat treatment was found to be different at three different gas environments. The controlling method for improving densification and purification in the cold sprayed Ti coating material was also discussed.

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  • Effect of Hot Isostatic Pressing on the Microstructure and Propertiesof Kinetic Sprayed Nb Coating Material
    Ji-Hye Lee, Sangsun Yang, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2016; 23(1): 15.     CrossRef
  • Fabrication and Microstructure/Properties of Bulk-typeTantalum Material by a Kinetic Spray Process
    Ji-Hye Lee, Ji-Won Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2016; 23(1): 8.     CrossRef
  • Effect of Heat Treatment Environment on the Microstructure and Properties of Kinetic Sprayed Tantalum Coating Layer
    Ji-Hye Lee, Hyung-Jun Kim, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2015; 22(1): 32.     CrossRef
  • Effect of Powder Preheating Temperature on the Properties of Titanium Coating Layers Manufactured by Kinetic Spraying
    Kee-Ahn Lee, Myeong-Ju Lee, Ji-Sang Yu, Hyung-Jun Kim
    MATERIALS TRANSACTIONS.2014; 55(3): 622.     CrossRef
  • Effect of Carrier Gases on the Microstructure and Properties of Ti Coating Layers Manufactured by Cold Spraying
    Myeong-Ju Lee, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2013; 20(1): 24.     CrossRef
  • Effects of Powder Morphology and Powder Preheating on the Properties and Deposition Behavior of Titanium Coating Layer Manufactured by Cold Spraying
    Jae-Nam Hwang, Myeong-Ju Lee, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
    Journal of Korean Powder Metallurgy Institute.2012; 19(5): 348.     CrossRef
Article image
[Korean]
Quantitative Study on the Refinement Behaviors of TiC Powders Produced by Mechanical Milling Under Different Impact Energy
Sung-Mo Hong, Eun-Kwang Park, Kyeong-Yeol Kim, Jin-Ju Park, Min-Ku Lee, Chang-Kyu Rhee, Jin-Kyu Lee, Young-Soon Kwon
J Korean Powder Metall Inst. 2012;19(1):32-39.
DOI: https://doi.org/10.4150/KPMI.2012.19.1.032
  • 641 View
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AbstractAbstract PDF
This study investigated refinement behaviors of TiC powders produced under different impact energy conditions using a mechanical milling process. The initial coarse TiC powders with an average diameter of 9.3 µm were milled for 5, 20, 60 and 120 mins through the conventional low energy mechanical milling (LEMM, 22G) and specially designed high energy mechanical milling (HEMM, 65G). TiC powders with angular shape became spherical one and their sizes decreased as the milling time increased, irrespective of milling energy. Based upon the FE-SEM and BET results of milled powders, it was found initial coarse TiC powders readily became much finer near 100 nm within 60 min under HEMM, while their sizes were over 200 nm under LEMM, despite the long milling time of up to 120 min. Particularly, ultra-fine TiC powders with an average diameter of 77 nm were fabricated within 60 min in the presence of toluene under HEMM.

Citations

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  • Effect of High Temperature on Microstructure and Hardness of Ti-6Al-4Dy Alloy by High Energy Ball Milling and Spark Plasma Sintering
    Donhee Lee, Junwoo Ga, Man Ho Park, Si Young Chang
    Journal of the Japan Society of Powder and Powder Metallurgy.2025; 72(Supplement): S787.     CrossRef
  • Compaction and Sintering Characteristics of High Energy Ball Milled Mn-Zn Ferrite Powders
    Hyunseung Lee, Hoseong Rhee, Sangsoo Lee, Si Young Chang
    Korean Journal of Materials Research.2021; 31(12): 677.     CrossRef
  • Fabrication of titanium carbide nano-powders by a very high speed planetary ball milling with a help of process control agents
    Sung-Mo Hong, Jin-Ju Park, Eun-Kwang Park, Kyeong-Youl Kim, Jung-Gu Lee, Min-Ku Lee, Chang-Kyu Rhee, Jin Kyu Lee
    Powder Technology.2015; 274: 393.     CrossRef
  • Control of Y2O3 phase and its nanostructure formation through a very high energy mechanical milling
    M.K. Lee, E.K. Park, J.J. Park, C.K. Rhee
    Journal of Solid State Chemistry.2013; 201: 56.     CrossRef
  • Fabrication of Fe coated Mg Based Desulfurization Powder by Mechanical Alloying Process
    Joon-Woo Song, Otaduy Guillermo, Byong-Sun Chun, Soon-Jik Hong
    Journal of Korean Powder Metallurgy Institute.2012; 19(3): 226.     CrossRef
  • Synthesis and structural properties of Ni–20Cr–2Y2O3 nanocomposite alloy prepared by a very high energy mechanical milling
    M.K. Lee, J.J. Park, C.K. Rhee
    Materials Chemistry and Physics.2012; 137(1): 129.     CrossRef
Article image
[Korean]
Fabrication of Porous Cu by Freeze-Drying Method of CuO-Camphene Slurry
Min-Soo Kim, Sung-Tag Oh, Si-Young Chang, Myung-Jin Suk
J Korean Powder Metall Inst. 2011;18(4):327-331.
DOI: https://doi.org/10.4150/KPMI.2011.18.4.327
  • 709 View
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AbstractAbstract PDF
In order to fabricate the porous metal with controlled pore characteristics, unique processing by using metal oxide powder as the source and camphene as the sublimable material is introduced. CuO powder was selected as the source for the formation of Cu metal via hydrogen reduction. Camphene-based CuO slurry, prepared by milling at 47°C with a small amount of dispersant, was frozen at -25°C. Pores were generated subsequently by sublimation of the camphene. The green body was hydrogen-reduced at 200°C for 30 min, and sintered at 500-700°C for 1 h. Microstructural analysis revealed that the sintered Cu showed aligned large pore channels parallel to the camphene growth direction, and fine pores are formed around the large pore. Also, it showed that the pore size was controllable by the slurry concentration.

Citations

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  • Freeze drying for porous Mo with different sublimable vehicle compositions in the camphor-naphthalene system
    Sung-Tag Oh, Young Do Kim, Myung-Jin Suk
    Materials Letters.2015; 139: 268.     CrossRef
  • Effect of Solidification Condition of Sublimable Vehicles on the Pore Characteristics in Freeze Drying Process
    Myung-Jin Suk, Ji Soon Kim, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2014; 21(5): 366.     CrossRef
  • Synthesis and Microstructure of Porous Al2O3 with Nano-Sized Cu Dispersions
    호석 유, 창용 현, 안기 김
    Korean Journal of Materials Research.2013; 23(1): 67~71.     CrossRef
  • Effect of Powder Characteristic and Freeze Condition on the Pore Characteristics of Porous W
    Na-Yeon Kwon, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2012; 19(4): 259.     CrossRef
  • Fabrication of Porous Mo by Freeze-Drying and Hydrogen Reduction of MoO3/Camphene Slurry
    Wonsuk Lee, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2012; 19(6): 446.     CrossRef
  • Fabrication and Properties of Porous Tungsten by Freeze-Drying Process
    영숙 이, 승탁 오
    Korean Journal of Materials Research.2011; 21(9): 520~524.     CrossRef
Article image
[Korean]
Preparation of the Nano Cobalt Powder by Wet Chemical Reduction Method
Hyun-Seon Hong, Young-Dae Ko, Lee-Seung Kang, Geon-Hong Kim, Hang-Chul Jung
J Korean Powder Metall Inst. 2011;18(3):244-249.
DOI: https://doi.org/10.4150/KPMI.2011.18.3.244
  • 636 View
  • 4 Download
  • 6 Citations
AbstractAbstract PDF
Spherical nanosized cobalt powder with an average size of 150-400 nm was successfully prepared at room temperature from cobalt sulfate heptahydrate (CoSO_4cdot7H_2O). Wet chemical reduction method was adopted to synthesize nano cobalt powder and hypophosphorous acid (H_3PO_2) was used as reduction agent. Both the HCP and the FCC Co phase were developed while CoSO_4cdot7H_2O concentration ranged from 0.7 M to 1.1 M. Secondary phase such as Co(OH)_2 and CO_3O_4 were also observed. Peaks for the crystalline Co phase having HCP and FCC structure crystallized as increasing the concentration of H_3PO_2, indicating that the amount of reduction agent was enough to reduce Co(OH)_2. Consequently, a homogeneous Co phase could be developed without second phase when the H_3PO_2/CoSO_4cdot7H_2O ratio exceeded 7.

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  • First-principles calculations to investigate electrochemical performance, storage mechanism and magnetocaloric effect of LiFeBO3 for lithium-ion batteries and magnetic refrigerants
    Othmane Mennaoui, Rachid Masrour, Ling Xu, El Kebir Hlil
    Ionics.2024; 30(5): 2537.     CrossRef
  • Spark plasma sintering of WC–Co tool materials prepared with emphasis on WC core–Co shell structure development
    Sungkyu Lee, Hyun Seon Hong, Hyo-Seob Kim, Soon-Jik Hong, Jin-Ho Yoon
    International Journal of Refractory Metals and Hard Materials.2015; 53: 41.     CrossRef
  • Coating of Cobalt Over Tungsten Carbide Powder by Wet Chemical Reduction Method
    Hyun-Seon Hong, Jin-Ho Yoon
    Journal of Korean Powder Metallurgy Institute.2014; 21(2): 93.     CrossRef
  • Optimization of Wet Reduction Processing for Nanosized Cobalt Powder
    Hyun-Seon Hong, Hang-Chul Jung, Geon-Hong Kim, Lee-Seung Kang, Han-Gil Suk
    Journal of Korean Powder Metallurgy Institute.2013; 20(3): 191.     CrossRef
  • Synthesis and Characterization of CoFe2O4/SiO2using Cobalt Precursors from Recycling Waste Cemented Carbide
    Ri Yu, Jae-Hwan Pee, Yoo-Jin Kim
    Journal of the Korean Ceramic Society.2011; 48(5): 454.     CrossRef
  • Preparation of Spherical Cobalt Fine Powders by New Liquid Reduction Method
    Dae Weon Kim, Ji-Hoon Kim, Yo-Han Choi, Hee Lack Choi, Jin-Ho Yoon
    journal of Korean Powder Metallurgy Institute.1970; 22(4): 260.     CrossRef
Article image
[Korean]
Sintering Behavior and Phase Analysis of (Nd, Dy)-Fe-B Powder
Se-Hoon Kim, Jin-Woo Kim, Young-Do Kim
J Korean Powder Metall Inst. 2010;17(2):154-159.
DOI: https://doi.org/10.4150/KPMI.2010.17.2.154
  • 642 View
  • 3 Download
  • 6 Citations
AbstractAbstract PDF
In this study, the sintering behavior of (Nd, Dy)-Fe-B powder which fabricated by strip-casting was investigated with various sintering temperatures and holding times. The relative density over 99% could be obtained by both sintering at 1070°C for 1h and sintering at 970°C for 20h. The grain growth was observed in sintered specimen at 1050°C compared to one at 970°C. The isothermal sintering process below 1000°C led to suppress grain growth showing the improved magnetic properties. The phase transformation of Nd-rich was confirmed by X-ray diffraction pattern.

Citations

Citations to this article as recorded by  
  • Crystallographic and Mössbauer studies of sintered Nd-Fe-B magnet
    Yong Hui Li, Jung Tae Lim, Chul Sung Kim, Sung Yong An, Kang Ryong Choi, Moonhee Choi
    Journal of the Korean Physical Society.2013; 62(11): 1641.     CrossRef
  • Mechanical properties of (Nd,Dy)–Fe–B magnets sintered via cyclic sintering
    Jin Woo Kim, Se Hoon Kim, Young Do Kim
    Materials Science and Engineering: A.2012; 535: 325.     CrossRef
  • Magnetic Properties and Sintering Behavior of (Nd,Dy)-Fe-B Permanent Magnet by Spark Plasma Sintering
    Sun-Yong Song, Jin-Woo Kim, Se-Hoon Kim, Young-Do Kim
    Journal of Korean Powder Metallurgy Institute.2012; 19(2): 105.     CrossRef
  • Pt and Polymer Electrolyte Membrane Fuel Cell
    Hye-Sook Joo, Jung-Yeul Yun, Han-Shin Choi
    Journal of Korean Powder Metallurgy Institute.2011; 18(1): 1.     CrossRef
  • High coercive Nd–Fe–B magnets fabricated via two-step sintering
    Se Hoon Kim, Jin Woo Kim, Tae Sun Jo, Young Do Kim
    Journal of Magnetism and Magnetic Materials.2011; 323(22): 2851.     CrossRef
  • The Coercivity Enhancement of (Nd,Dy)-Fe-B Sintered Magnet by Microstructure Control
    Jin-Woo Kim, Se-Hoon Kim, Young-Do Kim
    Journal of Korean Powder Metallurgy Institute.2011; 18(1): 18.     CrossRef
Article image
[Korean]
Fabrication and Characterization of Porous Nickel Membrane for High Precision Gas Filter by In-situ Reduction/Sintering Process
Nam-Hoon Kim, Han-Bok Song, Sung-Churl Choi, Yong-Ho Choa
J Korean Powder Metall Inst. 2009;16(4):262-267.
DOI: https://doi.org/10.4150/KPMI.2009.16.4.262
  • 786 View
  • 4 Download
  • 6 Citations
AbstractAbstract PDF
Disk type porous nickel membrane was fabricated by in-situ reduction/sintering process using compacted NiO/PMMA (PMMA; Polymethyl methacrylate) mixture at 800°C in hydrogen atmosphere. The porosity (49sim58%) of these membrane was investigated as an amount of PMMA additive. The thermal decomposition and reduction behavior of NiO/PMMA were analyzed by TG/DTA in hydrogen atmosphere and the activation energy for the hydrogen reduction of NiO and thermal degradation of PMMA was calculated as 61.1 kJ/mol, evaluated by Kissinger method. Finally, the filtering performance and pressure drop were measured by particle counting system.

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  • Fabrication and filtration efficiency of porous sintered bodies using shape-controlled 316L stainless steel powders by high-energy ball milling
    Sanghyun Yang, Woocheol Kim, Jongmin Byun
    Powder Metallurgy.2025; 68(4): 369.     CrossRef
  • Fabrication of Porous Ni by Freeze Drying and Hydrogen Reduction of NiO/Camphene Slurry
    Jae-Hun Jeong, Sung-Tag Oh, Chang-Yong Hyun
    Journal of Korean Powder Metallurgy Institute.2019; 26(1): 6.     CrossRef
  • Fabrication of Porous W by Heat Treatment of Pore Forming Agent of PMMA and WO3 Powder Compacts
    Ki Cheol Jeon, Young Do Kim, Myung-Jin Suk, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2015; 22(2): 129.     CrossRef
  • Fabrication of Porous Cu by Freeze-drying Process of Camphene Slurry with CuO-coated Cu Powders
    Su-Ryong Bang, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2014; 21(3): 191.     CrossRef
  • Fabrication of Porous Ti by Freeze-Drying and Heat Treatment of TiH2/Camphene Slurries
    한길 서, 명진 석, 영도 김, 승탁 오
    Korean Journal of Materials Research.2013; 23(6): 339~343.     CrossRef
  • Freeze Drying for Porous Mo with Sublimable Vehicles of Eutectic System
    Gyu-Tae Lee, Han Gil Seo, Myung-Jin Suk, Sung-Tag Oh
    Journal of Korean Powder Metallurgy Institute.2013; 20(4): 253.     CrossRef
Article image
[Korean]
Fabrication and Characterization of Carbon-Coated Cu Nanopowders by Pulsed Wire Evaporation Method
H.M. Lee, J.H. Park, S.M. Hong, Y.R. Uhm, C.K. Rhee
J Korean Powder Metall Inst. 2009;16(4):243-248.
DOI: https://doi.org/10.4150/KPMI.2009.16.4.243
  • 673 View
  • 1 Download
  • 6 Citations
AbstractAbstract PDF
Carbon-coated Cu nanopowders with core/shell structure have been successfully fabricated by pulsed wire evaporation (PWE) method, in which a mixed gas of Ar/CH_4 (10 vol.%) was used as an ambient gas. The characterization of the samples was carried out using x-ray diffraction (XRD), scanning electron microscope (SEM), and high resolution transmission electron microscope (HRTEM). It was found that the nanoparticles show a spherical morphology with the size ranging of 10-40 nm and are covered with graphite layers of 2-4 nm. When oxygen-passivated Cu nanopowders were annealed under flowing argon gas (600 and 800°C), the crystallinity of Cu_2O phase and the particle size gradually increased. On the other hand, carbon-coated Cu nanopowders remained similar to as-prepared case with no additional oxide or carbide phases even after the annealing, indicating that the metal nanoparticles are well protected by the carbon-coating layers.

Citations

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  • Improved oxidation stability of carbon-coated Ni nanoparticles synthesized by one-step electrical wire explosion
    Jun-Hyeok Lee, Byung-Hoon Kim, Gyoung-Ja Lee
    Materials Chemistry and Physics.2022; 276: 125410.     CrossRef
  • Fabrication of Ni-free Fe-based Alloy Nano Powder by Pulsed Wire Evaporation in Liquid: Part I. Effect of Wire Diameter and Applied Voltage
    Ho-Jin Ryu, Yong-Heui Lee, Kwang-Ug Son, Young-Min Kong, Jin-Chun Kim, Byoung-Kee Kim, Jung-Yeul Yun
    Journal of Korean Powder Metallurgy Institute.2011; 18(2): 105.     CrossRef
  • A Study on Thermal Properties of Ethylene Glycol Containing Copper Oxide Nanoparticles
    Chang-Kyu Kim, Gyoung-Ja Lee, Chang-Kyu Rhee
    Journal of Korean Powder Metallurgy Institute.2010; 17(4): 276.     CrossRef
  • Synthesis and Characterization of Cu Nanofluid Prepared by Pulsed Wire Evaporation Method
    Chang-Kyu Kim, Gyoung-Ja Lee, Chang-Kyu Rhee
    Journal of Korean Powder Metallurgy Institute.2010; 17(4): 270.     CrossRef
  • Synthesis of Core/shell Structured Ag/C Nano Particles and Properties on Annealing Conditions
    S.H. Jun, Y.R. Uhm, C.K. Rhee
    Journal of Korean Powder Metallurgy Institute.2010; 17(4): 295.     CrossRef
  • Synthesis and Characterization of Glold Nanofluid Prepared by the Solution Plasma Processing
    Yong-Kang Heo, Sang-Yul Lee
    Journal of Korean Powder Metallurgy Institute.2010; 17(4): 342.     CrossRef
Article image
[Korean]
Microstructure Control and Magnetic Property of Nd-Fe-B Sintered Magnets After Cyclic Heat Treatment
Se-Hoon Kim, Hoon-Sup Kim, Dong-Hwan Kim, Young-Do Kim
J Korean Powder Metall Inst. 2008;15(6):471-476.
DOI: https://doi.org/10.4150/KPMI.2008.15.6.471
  • 664 View
  • 3 Download
  • 6 Citations
AbstractAbstract PDF
Sintered Nd-Fe-B magnets have been widely used due to their excellent magnetic properties, especially for driving motors of hybrid and electric vehicles. The microstructure of Nd-Fe-B magnets strongly affects their magnetic properties, in particular the coercivity. Therefore, a post-sintering process like heat-treatment is required for improving the magnetic properties of Nd-Fe-B sintered magnets. In this study, cyclic heat treatment was performed at temperatures between 350°C and 450°C up to 16 cycles in order to control microstructures such as size and shape of the Nd-rich phase without grain growth of the Nd_2Fe_14B phase. The 2 cycles specimen at this temperature range showed more homogeneous microstructure which leads to higher coercivity of 35 kOe than as-sintered one.

Citations

Citations to this article as recorded by  
  • Magnetic Properties and Sintering Behavior of (Nd,Dy)-Fe-B Permanent Magnet by Spark Plasma Sintering
    Sun-Yong Song, Jin-Woo Kim, Se-Hoon Kim, Young-Do Kim
    Journal of Korean Powder Metallurgy Institute.2012; 19(2): 105.     CrossRef
  • Pt and Polymer Electrolyte Membrane Fuel Cell
    Hye-Sook Joo, Jung-Yeul Yun, Han-Shin Choi
    Journal of Korean Powder Metallurgy Institute.2011; 18(1): 1.     CrossRef
  • The Coercivity Enhancement of (Nd,Dy)-Fe-B Sintered Magnet by Microstructure Control
    Jin-Woo Kim, Se-Hoon Kim, Young-Do Kim
    Journal of Korean Powder Metallurgy Institute.2011; 18(1): 18.     CrossRef
  • Magnetic properties of high coercivity Nd23Dy10Fe64TM2B1 sintered magnets by a convergent heat treatment
    Hoon-sup Kim, Se Hoon Kim, Jin Woo Kim, Young Jung Lee, Dae-Gun Kim, Young Do Kim
    Research on Chemical Intermediates.2010; 36(6-7): 859.     CrossRef
  • Coercivity Enhancement of Nd23Dy10Fe64TM2B1Sintered Magnet by Convergent Heat Treatment
    Hoon-Sup Kim, Se-Hoon Kim, Jin-Woo Kim, Young-Do Kim
    Journal of Korean Powder Metallurgy Institute.2010; 17(1): 1.     CrossRef
  • Effects of thermal stress induced by cyclic heat treatment on sintered (Nd, Dy)-Fe-B magnets
    Se Hoon Kim, Hoon-sup Kim, Young Jung Lee, Dae-Gun Kim, Young Do Kim
    Metals and Materials International.2010; 16(6): 959.     CrossRef

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