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From articles published in Journal of Powder Materials during the past two years (2024 ~ ).
Research Articles
- [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
- 2,992 View
- 38 Download
- 10 Citations
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Abstract
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.
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Citations
Citations to this article as recorded by
- Unidirectional porous PVDF Piezoelectrets fabricated via gradient ice-templating for enhanced energy harvesting performance
HyoMin Jeon, Seo Young Yoon, Nagamalleswara Rao Alluri, Momanyi Amos Okirigiti, HakSu Jang, Changyeon Baek, Tiandong Zhang, Geon-Tae Hwang, Min-Ku Lee, Gyoung-Ja Lee, Kwi-Il Park
Sustainable Materials and Technologies.2026; 47: e01888. CrossRef - In Situ Amidation‐Derived Interfacial Modulation for Homogeneous Ultra‐High Nanoparticle Loading Toward Robust and Flexible Piezoelectric Composites
HakSu Jang, In Beom Heo, Changyeon Baek, Dong Won Jeon, Donghun Lee, Nagamalleswara Rao Alluri, Hyejeong Choi, HyoMin Jeon, SungHoon Kim, Hyunseung Kim, Jihun Choi, Hyun‐Soo Chang, Chang Kyu Jeong, Min‐Ku Lee, Jun Mo Koo, Tiandong Zhang, Geon‐Tae Hwang, S
Advanced Functional Materials.2026;[Epub] CrossRef - 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
- Unidirectional porous PVDF Piezoelectrets fabricated via gradient ice-templating for enhanced energy harvesting performance
- [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
- 8,530 View
- 152 Download
- 10 Citations
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Abstract
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.
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Citations
Citations to this article as recorded by- Additive manufacturing of Ti-6Al-4V based oxide dispersion strengthened alloy using in-situ oxide-dispersed powders and bound metal deposition
Woo Hyeok Kim, Raj Narayan Hajra, Hyung-Ki Park, Jung-Yeul Yun, Jeoung Han Kim
Journal of Alloys and Compounds.2026; 1050: 185574. CrossRef - On abrasive grit wear types during grinding of additively manufactured Ti-64 alloy
Rakesh Kandulna, Amal Gupta, P.V. Rao, Prithviraj Mukhopadhyay
CIRP Journal of Manufacturing Science and Technology.2026; 69: 486. CrossRef - 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
- Additive manufacturing of Ti-6Al-4V based oxide dispersion strengthened alloy using in-situ oxide-dispersed powders and bound metal deposition
Critical Reviews
- [English]
- Recent Advances in Thermoelectric Materials and Devices: Improving Power Generation Performance
- Momanyi Amos Okirigiti, Cheol Min Kim, Hyejeong Choi, Nagamalleswara Rao Alluri, Kwi-Il Park
- J Powder Mater. 2025;32(1):1-15. Published online February 28, 2025
- DOI: https://doi.org/10.4150/jpm.2024.00395
- 11,952 View
- 268 Download
- 9 Citations
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Abstract
PDF
- Thermoelectric materials have been the focus of extensive research interest in recent years due to their potential in clean power generation from waste heat. Their conversion efficiency is primarily reflected by the dimensionless figure of merit, with higher values indicating better performance. There is a pressing need to discover materials that increase output power and improve performance, from the material level to device fabrication. This review provides a comprehensive analysis of recent advancements, such as Bi2Te3-based nanostructures that reduce thermal conductivity while maintaining electrical conductivity, GeTe-based high entropy alloys that utilize multiple elements for improved thermoelectric properties, porous metal-organic frameworks offering tunable structures, and organic/hybrid films that present low-cost, flexible solutions. Innovations in thermoelectric generator designs, such as asymmetrical geometries, segmented modules, and flexible devices, have further contributed to increased efficiency and output power. Together, these developments are paving the way for more effective thermoelectric technologies in sustainable energy generation.
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Citations
Citations to this article as recorded by- State-of-the-art research in conducting polymer thermoelectric composites: Design strategies, doping innovations, and emerging technologies
Vilakshana Acharya, Shivani Verma, Seema Gupta, Gaurav Pandey, Aanchal Sethi, Pooja Rawat
Journal of Applied Physics.2026;[Epub] CrossRef - A Powder-Metallurgical Route to Ag2(Te,S) Compounds and Their Thermoelectric Properties
Seungki Jo, Yoojeong Ji, Linh Ba Vu, Kyung Tae Kim
Journal of Powder Materials.2026; 33(3): 214. CrossRef - Interfacial Characterization of Al2O3-Coated p-Type Bi–Sb–Te Powders by Thermal and UV-assisted Atomic Layer Deposition
Jin Kyeong Shin, Yeongtae Choi, Byung Joon Choi
Journal of Powder Materials.2026; 33(3): 221. CrossRef - Design and optimization of all-segmented thermoelectric legs based on Bi2Te3 and SnTe for wide-range energy harvesting
Hyejeong Choi, Momanyi Amos Okirigiti, Nagamalleswara Rao Alluri, Jong Min Park, Donghyun Shin, Ho Seong Lee, Kyung Tae Kim, Changyeon Baek, Min-Ku Lee, Gyoung-Ja Lee, Kwi-Il Park
Journal of Power Sources.2026; 691: 240981. CrossRef - Mathematical and simulation modeling of photovoltaic systems utilizing thermoelectric modules for effective thermal management
Muhammad Sohaib Tahir, Xue Dong, Muhammad Mansoor Khan
Results in Engineering.2025; 27: 106344. CrossRef - Summary of Publications in the Special Issue: Advances in Corrosion Resistant Coatings
Yong X. Gan
Coatings.2025; 15(11): 1350. CrossRef - Standard Reference Thermoelectric Modules Based on Metallic Combinations and Geometric Design
EunA Koo, Hanhwi Jang, SuDong Park, Sang Hyun Park, Sae-byul Kang
Applied Sciences.2025; 15(18): 10273. CrossRef - Research Trends in Magneto-Mechano-Electric (MME) Energy Harvesting Devices
So Ie Jeong, Geon-Tae Hwang
Journal of Powder Materials.2025; 32(6): 529. CrossRef - Transient In-Situ Identification of Thermal Parameters in Commercial Thermoelectric Modules using Transfer-Function Models
Gurum Ahmad Pauzi, Irfan Alfiansyah, Agus Riyanto, Donni Kis Apriyanto, Yanti Yulianti, Warsito Warsito
Jurnal Ilmiah Pendidikan Fisika Al-Biruni.2025; 14(2): 187. CrossRef
- State-of-the-art research in conducting polymer thermoelectric composites: Design strategies, doping innovations, and emerging technologies
- [English]
- A Review of Recent Developments in CoCrFeMnNi High-Entropy Alloys Processed by Powder Metallurgy
- Cheenepalli Nagarjuna, Sheetal Kumar Dewangan, Hansung Lee, Eunhyo Song, K. Raja Rao, Byungmin Ahn
- J Powder Mater. 2025;32(2):145-164. Published online April 30, 2025
- DOI: https://doi.org/10.4150/jpm.2024.00430
- 6,992 View
- 163 Download
- 8 Citations
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Abstract
PDF
- In recent years, high-entropy alloys (HEAs) have attracted considerable attention in materials engineering due to their unique phase stability and mechanical properties compared to conventional alloys. Since the inception of HEAs, CoCrFeMnNi alloys have been widely investigated due to their outstanding strength and fracture toughness at cryogenic temperatures. However, their lower yield strength at room temperature limits their structural applications. The mechanical properties of HEAs are greatly influenced by their processing methods and microstructural features. Unlike traditional melting techniques, powder metallurgy (PM) provides a unique opportunity to produce HEAs with nanocrystalline structures and uniform compositions. The current review explores recent advances in optimizing the microstructural characteristics in CoCrFeMnNi HEAs by using PM techniques to improve mechanical performance. The most promising strategies include grain refinement, dispersion strengthening, and the development of heterogeneous microstructures (e.g., harmonic, bimodal, and multi-metal lamellar structures). Thermomechanical treatments along with additive manufacturing techniques are also summarized. Additionally, the review addresses current challenges and suggests future research directions for designing advanced HEAs through PM techniques.
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Citations
Citations to this article as recorded by- Effect of annealing temperature on thermal expansion and cryogenic mechanical properties of low-thermal-expansion Co22.2Cr6.2Fe48.8Ni17.8Cu5.0 medium-entropy alloy
Wooyoung Lee, Munsu Choi, Sungwook Kim, Dae-Kyeom Kim, Myungsuk Song, Taek-Soo Kim, Jungwan Lee, Hyoung Seop Kim, Hyunjoo Choi, Soo-Hyun Joo
Materials Science and Engineering: A.2026; 954: 149811. CrossRef - Structural and mechanical characteristics of high-entropy CoCrFeMnNi alloys manufactured by vacuum induction melting
V. K. Drobyshev, I. A. Panchenko, S. V. Konovalov, E. M. Zapolskaya
Russian Physics Journal.2026;[Epub] CrossRef - Sustainable powder metallurgy route to Densify oxide-derived CoCrFeNi high-entropy alloy
Taehyeob Im, Minjong Kim, Gertrude Mugwe Mongella, Nelson Bayi, Caroline Sunyong Lee
Materials Today Sustainability.2026; 34: 101330. CrossRef - Ultrasonic Nanocrystal Surface Modification of 3D Interconnected Heterostructured Complex Concentrated Alloys Produced by Liquid Metal Dealloying: Microstructural Evolution and Wear Behavior
Jumi Choi, Yeji Kim, Munsu Choi, Jae Hyuk Lee, Dong Jun Lee, Auezhan Amanov, Soo-Hyun Joo, Hyoung Seop Kim
Journal of Powder Materials.2026; 33(2): 91. CrossRef - Fabrication, application, and phase formation rules in high-entropy alloys
Milad Sakkaki, Vahid Pouyafar, Ramin Meshkabadi, Mehdi Shahedi Asl
Journal of Materials Science.2026; 61(27): 19161. CrossRef - Ultra-Low Temperature Mechanical Response of Laser Powder Bed Fusion–Processed C-Containing CoCrFeMnNi High-Entropy Alloy
Jae-Yong Cheon, Seong-June Youn, Young-Sang Na, Young-Kyun Kim
Journal of Powder Materials.2026; 33(3): 195. CrossRef - Thermodynamic investigation, design and syntheses of non-equiatomic NiCoCuFeMn high-entropy alloys based on phase formation rules
Milad Sakkaki, Vahid Pouyafar, Ramin Meshkabadi, Mehdi Shahedi Asl
Intermetallics.2026; 197: 109435. CrossRef - 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
- Effect of annealing temperature on thermal expansion and cryogenic mechanical properties of low-thermal-expansion Co22.2Cr6.2Fe48.8Ni17.8Cu5.0 medium-entropy alloy
- [English]
- Advances in Powder Metallurgy for High-Entropy Alloys
- Sheetal Kumar Dewangan, Cheenepalli Nagarjuna, Hansung Lee, K. Raja Rao, Man Mohan, Reliance Jain, Byungmin Ahn
- J Powder Mater. 2024;31(6):480-492. Published online December 31, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00297
- 8,735 View
- 202 Download
- 8 Citations
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Abstract
PDF
- High-entropy alloys (HEAs) represent a revolutionary class of materials characterized by their multi-principal element compositions and exceptional mechanical properties. Powder metallurgy, a versatile and cost-effective manufacturing process, offers significant advantages for the development of HEAs, including precise control over their composition, microstructure, and mechanical properties. This review explores innovative approaches integrating powder metallurgy techniques in the synthesis and optimization of HEAs. Key advances in powder production, sintering methods, and additive manufacturing are examined, highlighting their roles in improving the performance, advancement, and applicability of HEAs. The review also discusses the mechanical properties, potential industrial applications, and future trends in the field, providing a comprehensive overview of the current state and future prospects of HEA development using powder metallurgy.
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Citations
Citations to this article as recorded by- Effect of Pressure and Temperature on the Microstructure and Vickers Microhardness of the CoCrFeMnNiAl1.5 Alloy During Conventional Sintering and High-Frequency Induction Sintering
Leonardo Baylón García, José Manuel Mendoza Duarte, Ivanovich Estrada Guel, Audel Santos Beltrán, Hansel Manuel Medrano Prieto, Gustavo Rodríguez Cabriales, Enrique Rocha Rangel, José Luis Hernández Rivera, Roberto Martínez Sánchez, Alfredo Martínez Garcí
Coatings.2026; 16(3): 275. CrossRef - Sustainable powder metallurgy route to Densify oxide-derived CoCrFeNi high-entropy alloy
Taehyeob Im, Minjong Kim, Gertrude Mugwe Mongella, Nelson Bayi, Caroline Sunyong Lee
Materials Today Sustainability.2026; 34: 101330. CrossRef - Review on the impact of processing routes and external factors on phase formation and tribological properties of CoCrFeMnNi HEAs
Rituraj Chandrakar, Om Prakash, Anil Kumar, Ankur Jaiswal, Manish Kumar
Emergent Materials.2026;[Epub] CrossRef - Reinforcing High-Entropy Alloy Composites and Exploring the Impacts of Various Reinforcement Fillers on Microstructure and Mechanical Characterizations: A Comprehensive Review
Zary Adabavazeh, Arghavan Goudarzi, Babak Safaei
Archives of Computational Methods in Engineering.2026;[Epub] CrossRef - Study of microstructural evolution and solid-solution strengthening in a Fe₅₂₋ₓNi₂₆TiₓCr₁₈Cu₄ (x = 1–2 at%) complex concentrated alloy: computational simulation and experimental validation
Manuel Cabrera, Diego Suazo, Javiera Contreras-Cerón, Carlos Campos, Sergio Sauceda, Nicolás Canales, Cristóbal Montalba, Angelo Oñate
The International Journal of Advanced Manufacturing Technology.2026;[Epub] CrossRef - Fabrication and Alloying Behavior of Ultra-Lightweight AlTiCrVMg High-Entropy Alloy via Al-Mg Mutual Solubility and Sintering Control
Eunhyo Song, Hansung Lee, Byungmin Ahn
Journal of Powder Materials.2025; 32(3): 254. CrossRef - 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 - Latest Advancements and Mechanistic Insights into High-Entropy Alloys: Design, Properties and Applications
Anthoula Poulia, Alexander E. Karantzalis
Materials.2025; 18(24): 5616. CrossRef
- Effect of Pressure and Temperature on the Microstructure and Vickers Microhardness of the CoCrFeMnNiAl1.5 Alloy During Conventional Sintering and High-Frequency Induction Sintering
- [English]
- A Review of Inorganic Solid Electrolytes for All-Solid-State Lithium Batteries: Challenges and Progress
- Seul Ki Choi, Jaehun Han, Gi Jeong Kim, Yeon Hee Kim, Jaewon Choi, MinHo Yang
- J Powder Mater. 2024;31(4):293-301. Published online August 30, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00206
- 15,055 View
- 394 Download
- 8 Citations
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Abstract
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- All-solid-state lithium batteries (ASSLBs) are receiving attention as a prospective next-generation secondary battery technology that can reduce the risk of commercial lithium-ion batteries by replacing flammable organic liquid electrolytes with non-flammable solid electrolytes. The practical application of ASSLBs requires developing robust solid electrolytes that possess ionic conductivity at room temperature on a par with that of organic liquids. These solid electrolytes must also be thermally and chemically stable, as well as compatible with electrode materials. Inorganic solid electrolytes, including oxide and sulfide-based compounds, are being studied as promising future candidates for ASSLBs due to their higher ionic conductivity and thermal stability than polymer electrolytes. Here, we present the challenges currently facing the development of oxide and sulfide-based solid electrolytes, as well as the research efforts underway aiming to resolve these challenges.
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Citations
Citations to this article as recorded by- Data-driven prediction of ionic conductivity in solid-state electrolytes with machine learning and large language models
Haewon Kim, Taekgi Lee, Seongeun Hong, Kyeong-Ho Kim, Yongchul G. Chung
The Journal of Chemical Physics.2026;[Epub] CrossRef - Emerging Inorganic Solid-State Electrolytes Membrane Technologies for Innovative Lithium Separation
Dongju Seo, Shik Rou Kong, Yeelin Jung, Jiwoo Lee, Ah-Hyung Alissa Park, Aaron J. Moment, Youngjune Park
ACS ES&T Engineering.2026; 6(5): 1444. CrossRef - Mechanistic Insights into Li+ Transport Enabled by Isolated Sulfur Species in Li3PS4 Glasses
Jakub Pawelko, Xavier Rocquefelte, Auguste Tetenoire, David Le Coq, Laurent Calvez, Eric Furet
ACS Materials Letters.2026;[Epub] CrossRef - Influence of Ta5+ on structure and performance of Li0.32Fe0.01La0.56Ti0.94Sb0.06O3 solid electrolyte
Zizheng Zhang, Binxuan Jiang, Yueming Li, Kai Li, Zhenhua Chen, Emmanuel Kwame Yadzo
Journal of Power Sources.2026; 682: 240383. CrossRef - W/Se/Sn ternary Co-doping in Na2.8+zW0.2SnzSb0.8-zS3.2Se0.8 sulfide electrolytes: Toward simultaneously enhanced ionic conductivity and electrochemical stability for clean-energy-driven sustainable sodium-ion batteries
Mingchao Huo, Tao Huan, Yifan Gu, Yufeng Wu, Qing Jiao
Solid State Ionics.2026; 442: 117234. CrossRef - A facile synthesis of bulk LiPON in solution for solid-state electrolytes
Osma J. Gomez, Adam Antar, Alex T. Hall, Leopoldo Tapia-Aracayo, Joshua Seo, Nam Kim, Zihan Sun, Ryan Lim, Fu Chen, Yue Li, John Cumings, Gary Rubloff, Sang Bok Lee, David Stewart, Yang Wang
Journal of Materials Chemistry A.2025; 13(34): 28368. CrossRef - Uniform lithium deposition using Cu teepee structures for anode-free lithium metal batteries
Seo Yun Jung, Jaehun Han, Seul Ki Choi, Se Youn Cho, Jong Ho Won, Jaewon Choi, Minho Yang
Chemical Engineering Journal.2025; 522: 167302. CrossRef - Garnet-type LLZO electrolytes for solid-state lithium batteries: Interfaces, conductivity, in-situ processing, and industrial prospects
Kaleab Habtamu Ayalew, Nithyadharseni Palaniyandy, Mkhulu K. Mathe, Phumlani F. Msomi
Chemical Engineering Journal.2025; 524: 168098. CrossRef
- Data-driven prediction of ionic conductivity in solid-state electrolytes with machine learning and large language models
Research Articles
- [English]
- 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
- J Powder Mater. 2024;31(2):119-125. Published online April 30, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00045
- 4,504 View
- 99 Download
- 8 Citations
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Abstract
PDF
- The n-type Bi2-xSbxTe3 compounds have been of great interest due to its potential to achieve a high thermoelectric performance, comparable to that of p-type Bi2-xSbxTe3. However, a comprehensive understanding on the thermoelectric properties remains lacking. Here, we investigate the thermoelectric transport properties and band characteristics of n-type Bi2-xSbxTe3 (x = 0.1 – 1.1) based on experimental and theoretical considerations. We find that the higher power factor at lower Sb content results from the optimized balance between the density of state effective mass and nondegenerate mobility. Additionally, a higher carrier concentration at lower x suppresses bipolar conduction, thereby reducing thermal conductivity at elevated temperatures. Consequently, the highest zT of ~ 0.5 is observed at 450 K for x = 0.1 and, according to the single parabolic band model, it could be further improved by ~70 % through carrier concentration tuning.
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Citations
Citations to this article as recorded by- Role of Samarium as a composite in modifying the microstructure and thermoelectric properties of Bi1.5Sb0.5Te3 alloy
G. Poojitha, Pratheeksha N. Poojary, U. Deepika Shanubhogue, P. Poornesh, Ashok Rao, Y. K. Kuo, Dhanya Sunil, Bikash Sharma
Journal of Materials Science: Materials in Electronics.2026;[Epub] CrossRef - A Powder-Metallurgical Route to Ag2(Te,S) Compounds and Their Thermoelectric Properties
Seungki Jo, Yoojeong Ji, Linh Ba Vu, Kyung Tae Kim
Journal of Powder Materials.2026; 33(3): 214. CrossRef - Review of “Integrated Computer-Aided Process Engineering Session in the 17th International Symposium on Novel and Nano Materials (ISNNM, 14–18 November 2022)”
Yeon-Joo Lee, Pil-Ryung Cha, Hyoung-Seop Kim, Hyun-Joo Choi
MATERIALS TRANSACTIONS.2025; 66(1): 144. CrossRef - Enhanced energy harvesting performance of bendable thermoelectric generator enabled by trapezoidal-shaped legs
Momanyi Amos Okirigiti, Cheol Min Kim, Hyejeong Choi, Nagamalleswara Rao Alluri, Changyeon Baek, Min-Ku Lee, Gyoung-Ja Lee, Kwi-Il Park
Journal of Power Sources.2025; 631: 236254. 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 - Enhanced Electrical Properties of 3D Printed Bi2Te3-Based Thermoelectric Materials via Hot Isostatic Pressing
Seungki Jo
Ceramist.2025; 28(1): 126. CrossRef - Hot isostatic pressing-driven fine-tuning of electrical properties in p- and n-type (Bi,Sb)2Te3 thermoelectric materials
Seungki Jo, Jeong Min Park, Linh Ba Vu, Haeum Park, Soo Ho Jung, Jinhee Bae, Jong Min Park, Jungho Choe, Kyung Tae Kim
Ceramics International.2025; 51(26): 51107. CrossRef - Compensation of increased carrier concentration and thermal conductivity in enhancing thermoelectric efficiency in Sn-doped Sb-In-Te alloys
Yunjae Kim, Seungwoo Ha, Gyujin Chang, Gwan Hyeong Lee, Jaewoo Park, Chanwoo Ju, Se Yun Kim, TaeWan Kim, Sang-il Kim
Journal of the Korean Ceramic Society.2025;[Epub] CrossRef
- Role of Samarium as a composite in modifying the microstructure and thermoelectric properties of Bi1.5Sb0.5Te3 alloy
- [English]
- 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
- J Powder Mater. 2024;31(2):137-145. Published online April 30, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00038
- 6,616 View
- 158 Download
- 8 Citations
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Abstract
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- In order to predict the process window of laser powder bed fusion (LPBF) for printing metallic components, the calculation of volumetric energy density (VED) has been widely calculated for controlling process parameters. However, because it is assumed that the process parameters contribute equally to heat input, the VED still has limitation for predicting the process window of LPBF-processed materials. In this study, an explainable machine learning (xML) approach was adopted to predict and understand the contribution of each process parameter to defect evolution in Ti alloys in the LPBF process. Various ML models were trained, and the Shapley additive explanation method was adopted to quantify the importance of each process parameter. This study can offer effective guidelines for fine-tuning process parameters to fabricate high-quality products using LPBF.
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Citations
Citations to this article as recorded by- Data-Driven analysis relates mechanical properties to pore morphology in laser powder bed fusion
Jaemin Wang, Seungyeon Lee, Yeon Woo Kim, Kyung Tae Kim, Jeong Min Park, Dierk Raabe
Acta Materialia.2026; 304: 121751. CrossRef - From physics to intelligence: a review of AI-driven modeling strategies in laser direct energy deposition additive manufacturing
Seyedeh Fatemeh Nabavi, Saeid Nahavandi, Hamid Garmestani
Optics & Laser Technology.2026; 199: 114946. CrossRef - Progresses and Challenges in Additive Manufacturing of Bulk Metallic Glasses
Md Mahbubur Rahman, Raju Ahammad, Asif Karim Neon, Mukitur Rhaman, Md Jonaet Ansari, Md Nizam Uddin, Md Mainul Islam, Muhammad Altaf Nazir
Journal of Manufacturing and Materials Processing.2026; 10(4): 121. CrossRef - Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
Ji Sang Yoon, Yeon Woo Kim, Gyu Hyun Park, Youk Jin Kim, Sang Heon Lee, Jeong Seok Kim, Sung Ho Yu, Jeong Min Park
Journal of Powder Materials.2026; 33(3): 177. 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 - Automated segmentation and analysis of microscopy images of laser powder bed fusion melt tracks
Aagam Shah, Reimar Weissbach, David A. Griggs, A. John Hart, Elif Ertekin, Sameh Tawfick
Journal of Manufacturing Processes.2025; 154: 61. CrossRef - Coefficient of Thermal Expansion of AlSi10Mg, 316L Stainless Steel and Ti6Al4V Alloys Made with Laser Powder Bed Fusion
Selami Emanet, Edem Honu, Kekeli Agbewornu, Evelyn Quansah, Congyuan Zeng, Patrick Mensah
Materials.2025; 18(19): 4468. CrossRef - Adaptive slicing for increased productivity of metal laser powder bed fusion
Lars Vanmunster, Louca R. Goossens, Laurent Sergeant, Brecht Van Hooreweder, Bey Vrancken
Additive Manufacturing.2025; 112: 105000. CrossRef
- Data-Driven analysis relates mechanical properties to pore morphology in laser powder bed fusion
- [English]
- Ultra-Low-Temperature (4.2 K) Tensile Properties and Deformation Mechanism of Stainless Steel 304L Manufactured by Laser Powder Bed Fusion
- Seung-Min Jeon, Young-Sang Na, Young-Kyun Kim
- J Powder Mater. 2025;32(2):95-103. Published online April 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00066
- 3,118 View
- 70 Download
- 7 Citations
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Abstract
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- This study investigated the ultra-low-temperature (4.2 K) tensile properties and deformation mechanisms of stainless steel 304L manufactured via laser powder bed fusion (LPBF). The tensile properties of LPBF 304L were compared to those of conventional 304L to assess its suitability for cryogenic applications. The results revealed that LPBF 304L exhibited a significantly higher yield strength but lower ultimate tensile strength and elongation than conventional 304L at 4.2 K. The temperature dependence of the yield strength also favored LPBF 304L. Microstructural analysis demonstrated that LPBF 304L features a high density of dislocation cells and nano-inclusions, contributing to its greater strength. Furthermore, strain-induced martensitic transformation was observed as a key deformation mechanism at cryogenic temperatures, where austenite transformed into both hexagonal-closed packed (HCP) and body-centered cubic (BCC) martensite. Notably, BCC martensite nucleation occurred within a single HCP band. These findings provide critical insights into the mechanical behavior of LPBF 304L at cryogenic temperatures and its potential for applications in extreme environments.
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Citations
Citations to this article as recorded by- A strong and ductile nano/micro titanium carbide reinforced metastable austenitic steel at 4.2 K
Young-Kyun Kim, Sang Hun Shim, Young-Sang Na
Journal of Materials Science & Technology.2027; 278: 286. CrossRef - Extremely low-temperature tensile behavior of 316L stainless steel additively manufactured by laser powder bed fusion
Haeum Park, Heechan Jung, Min Young Sung, Young-Kyun Kim, Jaimyun Jung, Yoona Lee, Namhyun Kang, Kyung Tae Kim, Young-Sang Na, Seok Su Sohn, Jeong Min Park
Materials Science and Engineering: A.2026; 950: 149460. CrossRef - Twinning- and transformation-induced high cryogenic strength and ductility of the CoCrFeNi high-entropy alloy: Experiment and MD simulation
Yuze Wu, Zhide Li, Charlie Kong, M.W. Fu, Hailiang Yu
International Journal of Plasticity.2026; 196: 104553. CrossRef - Microstructure, cryogenic tensile and fracture behavior of laser welded Co17.5Cr12.5Fe55Ni10Mo5 complex concentrated alloy
Jae Hyuk Lee, Jeongmin Lee, Hidemi Kato, Seungkyun Yim, Dongkyoung Lee, Gian Song, Jeong Hun Lee, Dong Jun Lee, Young-Kyun Kim, Young-Sang Na, Hyoung Seop Kim, Jongun Moon, Soo-Hyun Joo
Materials Science and Engineering: A.2026; 960: 150106. CrossRef - Origin of little post-uniform elongation of 304L/310S austenitic stainless steels at extremely low temperatures
Seon-Keun Oh, Young-Kyun Kim, Young-Sang Na
Materials Science and Engineering: A.2026; 961: 150161. CrossRef - Ultra-Low Temperature Mechanical Response of Laser Powder Bed Fusion–Processed C-Containing CoCrFeMnNi High-Entropy Alloy
Jae-Yong Cheon, Seong-June Youn, Young-Sang Na, Young-Kyun Kim
Journal of Powder Materials.2026; 33(3): 195. CrossRef - Understanding the unique appearance behavior of shear bands during tensile deformation of α-brass at 4.2 K
Seon-Keun Oh, Sang-Hun Shim, Young-Kyun Kim, Young-Sang Na
Materials Science and Engineering: A.2025; 945: 148989. CrossRef
- A strong and ductile nano/micro titanium carbide reinforced metastable austenitic steel at 4.2 K
Review Paper
- [English]
- Research Trends in Electromagnetic Shielding using MXene-based Composite Materials
- Siyeon Kim, Jongmin Byun
- J Powder Mater. 2024;31(1):57-76. Published online February 28, 2024
- DOI: https://doi.org/10.4150/KPMI.2024.31.1.57
- 11,666 View
- 186 Download
- 7 Citations
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Abstract
PDF
Recent advancements in electronic devices and wireless communication technologies, particularly the rise of 5G, have raised concerns about the escalating electromagnetic pollution and its potential adverse impacts on human health and electronics. As a result, the demand for effective electromagnetic interference (EMI) shielding materials has grown significantly. Traditional materials face limitations in providing optimal solutions owing to inadequacy and low performance due to small thickness. MXene-based composite materials have emerged as promising candidates in this context owing to their exceptional electrical properties, high conductivity, and superior EMI shielding efficiency across a broad frequency range. This review examines the recent developments and advantages of MXene-based composite materials in EMI shielding applications, emphasizing their potential to address the challenges posed by electromagnetic pollution and to foster advancements in modern electronics systems and vital technologies.
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Citations
Citations to this article as recorded by- Recent Advances in EMI-Shielding Aerogels: Mechanisms, Materials, and Scalable Fabrication Methods
Sonali Thangavel, Thirumalaisamy Suryaprabha, Danhui Ren, Jun Young Cheong, Sooman Lim, Byungil Hwang
Journal of Natural Fibers.2026;[Epub] CrossRef - Emerging role of MXene-based nanofluids in energy conversion and thermal management: Future perspectives
Kumaran Kadirgama
Chemical Engineering Research and Design.2026; 230: 1149. CrossRef - Carbon/Inorganic Hybrid Multifunctional Composites: Interface Engineering, Coupled Functions and Application-Ready Design
Stefano Bellucci
Inorganics.2026; 14(6): 160. CrossRef - Designing dual phase hexaferrite (SrFe12O19) – Perovskite (La0.5Nd0.5FeO3) composites for enhanced electromagnetic wave absorption and band gap modulation
Pramod D. Mhase, Varsha C. Pujari, Santosh S. Jadhav, Abdullah G. Al-Sehemi, Sarah Alsobaie, Sunil M. Patange
Composites Communications.2025; 54: 102284. CrossRef - Microstructure tailoring of Nb-based MAX phase by low temperature synthesis with layer-structured Nb2C powder and molten salt method
Chaehyun Lim, Wonjune Choi, Jongmin Byun
Materials Characterization.2025; 225: 115106. CrossRef - Fabrication of MOF@MXene composites via surface modification of MXene under acidic conditions
Ji-Haeng Jeong, Woong-Ryeol Yu
Functional Composites and Structures.2025; 7(2): 025006. CrossRef - V2CTx MXene@ZIF-8 composite as an efficient adsorbent for Pb(II) removal from aqueous solution
Sarina Khojasteh Fard, Golshan Mazloom, Manoochehr Sobhani, Mohsen Tamtaji
Journal of Environmental Chemical Engineering.2025; 13(6): 120099. CrossRef
- Recent Advances in EMI-Shielding Aerogels: Mechanisms, Materials, and Scalable Fabrication Methods
Research Articles
- [English]
- 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
- J Powder Mater. 2024;31(1):8-15. Published online February 28, 2024
- DOI: https://doi.org/10.4150/KPMI.2024.31.1.8
- 5,793 View
- 147 Download
- 6 Citations
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Abstract
PDF
The emergence of ferrous-medium entropy alloys (FeMEAs) with excellent tensile properties represents a potential direction for designing alloys based on metastable engineering. In this study, an FeMEA is successfully fabricated using laser powder bed fusion (LPBF), a metal additive manufacturing technology. Tensile tests are conducted on the LPBF-processed FeMEA at room temperature and cryogenic temperatures (77 K). At 77 K, the LPBF-processed FeMEA exhibits high yield strength and excellent ultimate tensile strength through active deformation-induced martensitic transformation. Furthermore, due to the low stability of the face-centered cubic (FCC) phase of the LPBF-processed FeMEA based on nano-scale solute heterogeneity, stress-induced martensitic transformation occurs, accompanied by the appearance of a yield point phenomenon during cryogenic tensile deformation. This study elucidates the origin of the yield point phenomenon and deformation behavior of the FeMEA at 77 K.
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Citations
Citations to this article as recorded by- Stronger weld than base metal in face-centered cubic alloy through multi-scale heterogeneity
Yoona Lee, Sangwon Park, Dongwon Shin, Marcia Myung Hye Ahn, Wei Xiong, Nokeun Park, Hyoung Seop Kim, Je In Lee, Wookjin Lee, Yoon Suk Choi, Jeong Min Park, Namhyun Kang
Materials Research Letters.2026; 14(4): 386. CrossRef - Tensile behavior at cryogenic temperatures of Al 7075 + 1.8%wt Zr alloy processed by L-PBF
Gabrielle Tiphéne, Nicolas Nothomb, Marie-Noëlle Avettand-Fénoël, Aude Simar
Materials Science and Engineering: A.2026; 966: 150364. CrossRef - Effect of Building Orientation on Tensile Properties of Hastelloy X alloy Manufactured by Laser Powder Bed Fusion
Seong-June Youn, GooWon Noh, Seok Su Sohn, Young-Sang Na, Young-Kyun Kim
Journal of Powder Materials.2025; 32(2): 130. CrossRef - 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 - 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 - Recent progress in high-entropy alloys for laser powder bed fusion: Design, processing, microstructure, and performance
Asker Jarlöv, Zhiguang Zhu, Weiming Ji, Shubo Gao, Zhiheng Hu, Priyanka Vivegananthan, Yujia Tian, Devesh Raju Kripalani, Haiyang Fan, Hang Li Seet, Changjun Han, Liming Tan, Feng Liu, Mui Ling Sharon Nai, Kun Zhou
Materials Science and Engineering: R: Reports.2024; 161: 100834. CrossRef
- Stronger weld than base metal in face-centered cubic alloy through multi-scale heterogeneity
- [English]
- Self-Assembled Monolayers in Area-Selective Atomic Layer Deposition and Their Challenges
- Si Eun Jung, Ji Woong Shin, Ye Jin Han, Byung Joon Choi
- J Powder Mater. 2025;32(3):179-190. Published online June 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00094
- 7,146 View
- 279 Download
- 5 Citations
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Abstract
PDF
- Area-selective atomic layer deposition (AS-ALD) is a bottom-up process that selectively deposits thin films onto specific areas of a wafer surface. The surface reactions of AS-ALD are controlled by blocking the adsorption of precursors using inhibitors such as self-assembled monolayers (SAMs) or small molecule inhibitors. To increase selectivity during the AS-ALD process, the design of both the inhibitor and the precursor is crucial. Both inhibitors and precursors vary in reactivity and size, and surface reactions are blocked through interactions between precursor molecules and surface functional groups. However, challenges in the conventional SAM-based AS-ALD method include thermal instability and potential damage to substrates during the removal of residual SAMs after the process. To address these issues, recent studies have proposed alternative inhibitors and process design strategies.
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Citations
Citations to this article as recorded by- Temperature-Dependent Surface Structural Change in Self-Assembled Monolayers Studied with Vibrational Sum-Frequency Generation and QM/MD Simulation
Hojeong Yoon, Saima Sadiq, Junhyeok Park, Kyungwon Kwak, Minhaeng Cho
The Journal of Physical Chemistry Letters.2026; 17(4): 1119. CrossRef - Vertically Aligned Micro‐ and Nanoneedles for Advanced Biomedical Applications: From Fabrication Strategies to Clinical Translation
Yerim Jang, Sowon Lee, Younghak Cho, Hyejeong Seong
Small Structures.2026;[Epub] CrossRef - Morphology dependent optical properties of inorganic–organic hybrid ZnO thin films
Saleem G. Rao, Muhammad B. Haider, Omar A. Saleh
The European Physical Journal Applied Physics.2026; 101: 5. CrossRef - Backbone‐Length‐Optimized Inhibitors Deliver Long‐Retention Selectivity in Area‐Selective ALD of VO2
Hae Lin Yang, Eun Chong Cho, Minchan Kim, Hye In Park, Ga‐young Lee, Seunghwan Lee, Beomseok Kim, Changhwa Jung, Youngkwon Kim, Jin‐Seong Park
Advanced Science.2026;[Epub] CrossRef - Inducing chemical selectivity in the atomic layer deposition (ALD) of oxide films via gas-phase silylation using N-(trimethylsilyl)dimethylamine (TMSDMA)
Mohammed Sadman Alam, Francisco Zaera
Applied Surface Science.2026; 746: 167569. CrossRef
- Temperature-Dependent Surface Structural Change in Self-Assembled Monolayers Studied with Vibrational Sum-Frequency Generation and QM/MD Simulation
- [English]
- 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
- J Powder Mater. 2024;31(5):390-398. Published online October 31, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00325
- 3,119 View
- 87 Download
- 5 Citations
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Abstract
PDF
- The AlSi10Mg alloy has garnered significant attention for its application in laser powder bed fusion (L-PBF), due to its lightweight properties and good printability using L-PBF. However, the low production speed of the L-PBF process is the main bottleneck in the industrial commercialization of L-PBF AlSi10Mg alloy parts. Furthermore, while L-PBF AlSi10Mg alloy exhibits excellent mechanical properties, the properties are often over-specified compared to the target properties of parts traditionally fabricated by casting. To accelerate production speed in L-PBF, this study investigated the effects of process parameters on the build rate and mechanical properties of the AlSi10Mg alloy. Guidelines are proposed for high-speed additive manufacturing of the AlSi10Mg alloy for use in automotive parts. The results show a significant increase in the build rate, exceeding the conventional build rate by a factor of 3.6 times or more, while the L-PBF AlSi10Mg alloy met the specifications for automotive prototype parts. This strategy can be expected to offer significant cost advantages while maintaining acceptable mechanical properties of topology-optimized parts used in the automobile industry.
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Citations
Citations to this article as recorded by- Data-Driven analysis relates mechanical properties to pore morphology in laser powder bed fusion
Jaemin Wang, Seungyeon Lee, Yeon Woo Kim, Kyung Tae Kim, Jeong Min Park, Dierk Raabe
Acta Materialia.2026; 304: 121751. CrossRef - Role of Si-decorated cell structure in cryogenic tensile behavior of additively manufactured AlSi10Mg alloy
Haeum Park, Jisung Yoo, Hyojin Hwang, Minsoo Jin, Yonghee Jo, Tae Jin Jang, Ji-Hun Yu, Seok Su Sohn, Jeong Min Park
Materials Science and Engineering: A.2026; 959: 150080. CrossRef - Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
Ji Sang Yoon, Yeon Woo Kim, Gyu Hyun Park, Youk Jin Kim, Sang Heon Lee, Jeong Seok Kim, Sung Ho Yu, Jeong Min Park
Journal of Powder Materials.2026; 33(3): 177. CrossRef - Lightweight Design of a Connecting Rod Using Lattice-Structure Parameter Optimisation: A Test Case for L-PBF
Michele Amicarelli, Michele Trovato, Paolo Cicconi
Machines.2025; 13(3): 171. 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
- Data-Driven analysis relates mechanical properties to pore morphology in laser powder bed fusion
- [Korean]
- Effect of Abnormal Grain Growth on Ionic Conductivity in LATP
- Hyungik Choi, Yoonsoo Han
- J Powder Mater. 2024;31(1):23-29. Published online February 28, 2024
- DOI: https://doi.org/10.4150/KPMI.2024.31.1.23
- 4,000 View
- 75 Download
- 5 Citations
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PDF
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Citations
Citations to this article as recorded by- NASICON-type LATP solid electrolytes for lithium metal batteries: Fundamentals to AI-driven materials design
Ateeq Ahmed, Eunbin Noh, Jinseo Kim, Junhwan Yu, Chanyoung Lee, Jina Lee, Jimin Oh
Energy Storage Materials.2026; 88: 105138. CrossRef - High-Conductivity Solid-State Electrolytes Through Low-Temperature Hot-Pressing of LCBA/LATP Composites
Wookyung Lee, Jaeseung Choi, Jungkeun Ahn, Hanbyul Lee, Byungwook Kim, Youngsoo Seo, Changbun Yoon
Materials.2026; 19(10): 2033. CrossRef - Liquid Ga-mediated Grain Boundary Engineering for High Ionic Conductivity and Stability in NASICON-type Solid Electrolytes for Li-ion Batteries
Yen-Lin Chen, Wen-Hsuan Lu, Hsiang-Jung Chen, Yen-Shou Huang, Pei-I Wei, Ying-Da Luo, Han-Yi Chen
Electrochimica Acta.2026; : 149587. CrossRef - Temperature-dependent microstructural evolution in a compositionally complex solid electrolyte: The role of a grain boundary transition
Shu-Ting Ko, Chaojie Du, Huiming Guo, Hasti Vahidi, Jenna L. Wardini, Tom Lee, Yi Liu, Jingjing Yang, Francisco Guzman, Timothy J. Rupert, William J. Bowman, Shen J. Dillon, Xiaoqing Pan, Jian Luo
Journal of Advanced Ceramics.2025; 14(3): 9221047. CrossRef - Effect of bimodal particle size distribution on Li1.5Al0.5Ti1.5(PO4)3 solid electrolytes: Microstructures and electrochemical properties
Gi Jeong Kim, Yeon Hee Kim, Seul Ki Choi, Jong Won Bae, Kun-Jae Lee, Minho Yang
Powder Technology.2025; 466: 121407. CrossRef
- NASICON-type LATP solid electrolytes for lithium metal batteries: Fundamentals to AI-driven materials design
- [English]
- The Effect of Aluminum Powder Size on the Structure and Mechanical Properties of Foam
- Seunghyeok Choi, Sungjin Kim, Tae-Young Ahn, Yu-Song Choi, Jae-Gil Jung, Seung Bae Son, Seok-Jae Lee
- J Powder Mater. 2025;32(3):232-243. Published online June 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00157
- 2,912 View
- 69 Download
- 4 Citations
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Abstract
PDF
- In this study, we analyzed the structural and mechanical properties of aluminum foams fabricated using aluminum powders of varying sizes and mixtures. The effects of sintering and pore structure at each size on the integrity and mechanical properties of the foams were investigated. Structural characteristics were examined using scanning electron microscopy and micro–computed tomography, while mechanical properties were evaluated through compression testing. The experimental results demonstrated that smaller powder sizes improved foam integrity, reduced porosity and pore size, and resulted in thinner cell walls. In combination, these effects increased compressive strength as the powder size decreased. The findings of this study contribute to the understanding and improvement of the mechanical properties of aluminum foams and highlight their potential for use in a wide range of applications.
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Citations
Citations to this article as recorded by- Sustainable Manufacturing of Graphene–Aluminum Composites: A Comparative Life Cycle Assessment
Xinwei Yang, Qian Peng, Changke Chen, Qingcui Liu, Yudai Huang
Journal of Sustainable Metallurgy.2026; 12(1): 727. CrossRef - Effect of powder size and sintering time on the induction sintering behavior of aluminum fabricated by UHFIS
Hıdır Sercan Çubuk
Turkish Journal of Engineering.2026; 10(2): 396. CrossRef - A Powder-Metallurgical Route to Ag2(Te,S) Compounds and Their Thermoelectric Properties
Seungki Jo, Yoojeong Ji, Linh Ba Vu, Kyung Tae Kim
Journal of Powder Materials.2026; 33(3): 214. CrossRef - Comparative Densification, Microstructure, and Mechanical Response of Five-Layer Al-Al2O3 Functionally Graded Materials Processed by Vacuum Sintering and Spark Plasma Sintering
Satyasaibaba Pitta, Ranga Janardhana Ginka, Balakrishna Bhanavathu
Journal of The Institution of Engineers (India): Series D.2026;[Epub] CrossRef
- Sustainable Manufacturing of Graphene–Aluminum Composites: A Comparative Life Cycle Assessment
- [English]
- 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
- J Powder Mater. 2025;32(3):191-201. Published online June 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00143
- 3,881 View
- 108 Download
- 4 Citations
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Abstract
PDF
- High-entropy alloys (HEAs) exhibit complex phase formation behavior, challenging conventional predictive methods. This study presents a machine learning (ML) framework for phase prediction in HEAs, using a curated dataset of 648 experimentally characterized compositions and features derived from thermodynamic and electronic descriptors. Three classifiers—random forest, gradient boosting, and CatBoost—were trained and validated through cross-validation and testing. Gradient boosting achieved the highest accuracy, and valence electron concentration (VEC), atomic size mismatch (δ), and enthalpy of mixing (ΔHmix) were identified as the most influential features. The model predictions were experimentally verified using a non-equiatomic Al₃₀Cu₁₇.₅Fe₁₇.₅Cr₁₇.₅Mn₁₇.₅ alloy and the equiatomic Cantor alloy (CoCrFeMnNi), both of which showed strong agreement with predicted phase structures. The results demonstrate that combining physically informed feature engineering with ML enables accurate and generalizable phase prediction, supporting accelerated HEA design.
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Citations
Citations to this article as recorded by- Effect of annealing temperature on thermal expansion and cryogenic mechanical properties of low-thermal-expansion Co22.2Cr6.2Fe48.8Ni17.8Cu5.0 medium-entropy alloy
Wooyoung Lee, Munsu Choi, Sungwook Kim, Dae-Kyeom Kim, Myungsuk Song, Taek-Soo Kim, Jungwan Lee, Hyoung Seop Kim, Hyunjoo Choi, Soo-Hyun Joo
Materials Science and Engineering: A.2026; 954: 149811. CrossRef - Amorphization–Densification Coupling Governs Hardness Enhancement in SPS-Consolidated Al–Fe–Nb–(Ni,Ti) Metastable Alloys
Nguyen Thi Hoang Oanh, Nguyen Hoang Viet
Materials.2026; 19(12): 2628. CrossRef - Preparation and Arc Erosion Behavior of Cu-Based Contact Materials Reinforced with High Entropy Particles CuCrNiCoFe
Jiacheng Tong, Jun Wang, Huimin Zhang, Haoran Liu, Youchang Sun, Zhiguo Li, Wenyi Zhang, Zhe Wang, Yanli Chang, Zhao Yuan, Henry Hu
Metallurgical and Materials Transactions B.2025; 56(5): 5948. CrossRef - Recent progresses on high entropy alloy development using machine learning: A review
Abhishek Kumar, Nilay Krishna Mukhopadhyay, Thakur Prasad Yadav
Computational Materials Today.2025; 8: 100038. CrossRef
- Effect of annealing temperature on thermal expansion and cryogenic mechanical properties of low-thermal-expansion Co22.2Cr6.2Fe48.8Ni17.8Cu5.0 medium-entropy alloy
Critical Review
- [English]
- 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
- J Powder Mater. 2024;31(5):365-373. Published online October 31, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00213
- 4,814 View
- 119 Download
- 4 Citations
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Abstract
PDF
- This review examines the microstructural and mechanical properties of a Ti-6Al-4V alloy produced by wrought processing and powder metallurgy (PM), specifically laser powder bed fusion (LPBF) and hot isostatic pressing. Wrought methods, such as forging and rolling, create equiaxed alpha (α) and beta (β) grain structures with balanced properties, which are ideal for fatigue resistance. In contrast, PM methods, particularly LPBF, often yield a martensitic α′ structure with high microhardness, enabling complex geometries but requiring post-processing to improve its properties and reduce stress. The study evaluated the effects of processing parameters on grain size, phase distribution, and material characteristics, guiding the choice of fabrication techniques for optimizing Ti-6Al-4V performance in aerospace, biomedical, and automotive applications. The analysis emphasizes tailored processing to meet advanced engineering demands.
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Citations
Citations to this article as recorded by- Fabrication-induced microstructural heterogeneity as the origin of fatigue failure in Ti-6Al-4 V ELI
André Luiz Vidilli, Elielson Alves dos Santos, Brenda Juliet Martins Freitas, Thiago Roberto Felisardo Cavalcante, Arthur de Bribean Guerra, Guilherme Yuuki Koga, Claudemiro Bolfarini
Engineering Failure Analysis.2026; 193: 110941. CrossRef - Production of Pre-Alloyed Ti–6Al–4V Powders from Titanium Sponge via a Combined Mechanical Alloying and Hydrogenation–Dehydrogenation Process for Powder Metallurgy
Nazerke Serikkyzy, Zarina Aringozhina, Bauyrzhan Rakhadilov, Meruyert Adilkanova, Nurtoleu Magazov, Arnur Askhatov
Processes.2026; 14(12): 1991. 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 oxygen content in feedstock powders on microstructure and mechanical properties of ELI Ti-6Al-4V fabricated via laser powder bed fusion
Woo Hyeok Kim, Sang Woo Kim, Raj Narayan Hajra, Gargi Roy, Jeoung Han Kim
Powder Metallurgy.2025; 68(4): 307. CrossRef
- Fabrication-induced microstructural heterogeneity as the origin of fatigue failure in Ti-6Al-4 V ELI
Research Articles
- [Korean]
- Study on the Elemental Diffusion Distance of a Pure Nickel Layer Additively Manufactured on 316H Stainless Steel
- UiJun Ko, Won Chan Lee, Gi Seung Shin, Ji-Hyun Yoon, Jeoung Han Kim
- J Powder Mater. 2024;31(3):220-225. Published online June 27, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00164
- 2,324 View
- 59 Download
- 4 Citations
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Abstract
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- Molten salt reactors represent a promising advancement in nuclear technology due to their potential for enhanced safety, higher efficiency, and reduced nuclear waste. However, the development of structural materials that can survive under severe corrosion environments is crucial. In the present work, pure Ni was deposited on the surface of 316H stainless steel using a directed energy deposition (DED) process. This study aimed to fabricate pure Ni alloy layers on an STS316H alloy substrate. It was observed that low laser power during the deposition of pure Ni on the STS316H substrate could induce stacking defects such as surface irregularities and internal voids, which were confirmed through photographic and SEM analyses. Additionally, the diffusion of Fe and Cr elements from the STS316H substrate into the Ni layers was observed to decrease with increasing Ni deposition height. Analysis of the composition of Cr and Fe components within the Ni deposition structures allows for the prediction of properties such as the corrosion resistance of Ni.
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Citations
Citations to this article as recorded by- Microstructural analysis and characterization of nickel deposition on 316H stainless steel via gas tungsten arc welding and powder laser cladding
Won Chan Lee, Jin Woong Park, Seung Ju Nam, Ji-Hyun Yoon, Jeoung Han Kim
Powder Metallurgy.2025; 68(4): 342. CrossRef - Effect of oxygen content in feedstock powders on microstructure and mechanical properties of ELI Ti-6Al-4V fabricated via laser powder bed fusion
Woo Hyeok Kim, Sang Woo Kim, Raj Narayan Hajra, Gargi Roy, Jeoung Han Kim
Powder Metallurgy.2025; 68(4): 307. CrossRef - Development of Aluminum Alloys for Additive Manufacturing Using Machine Learning
Sungbin An, Juyeon Han, Seoyeon Jeon, Dowon Kim, Jae Bok Seol, Hyunjoo Choi
Journal of Powder Materials.2025; 32(3): 202. CrossRef - Evaluation of Mechanical Properties of Pure Ni Coatings on a Type 316H Stainless Steel Substrate via High-Velocity Oxy-fuel and Directed Energy Deposition Processes
Won Chan Lee, Seung Ju Nam, Ji-Hyun Yoon, Jeoung Han Kim
Journal of Powder Materials.2025; 32(4): 309. CrossRef
- Microstructural analysis and characterization of nickel deposition on 316H stainless steel via gas tungsten arc welding and powder laser cladding
- [Korean]
- 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
- J Powder Mater. 2025;32(2):104-112. Published online March 4, 2025
- DOI: https://doi.org/10.4150/jpm.2024.00458
- 1,597 View
- 37 Download
- 3 Citations
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Abstract
PDF
- A hybrid energy harvester that consisted of thermoelectric (TE) composite film and electrospun piezoelectric (PE) polymeric membranes was constructed. TE composites were fabricated by dispersing inorganic TE powders inside polyvinylidene fluoride elastomer using a drop-casting technique. The polyvinylidene fluoride-trifluoroethylene, which was chosen due to its excellent chemical resistance, mechanical stability, and biocompatibility, was electrospun onto an aluminum foil to fabricate the ultra-flexible PE membranes. To create a hybrid energy harvester that can simultaneously convert heat and mechanical energy resources into electricity, the TE composite films attached to the PE membrane were encapsulated with protective polydimethylsiloxane. The fabricated energy harvester converted the outputs with a maximum voltage of 4 V (PE performance) and current signals of 0.2 μA (TE performance) under periodical heat input and mechanical bending in hybrid modes. This study demonstrates the potential of the hybrid energy harvester for powering flexible and wearable electronics, offering a sustainable and reliable power source.
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Citations
Citations to this article as recorded by- Unidirectional porous PVDF Piezoelectrets fabricated via gradient ice-templating for enhanced energy harvesting performance
HyoMin Jeon, Seo Young Yoon, Nagamalleswara Rao Alluri, Momanyi Amos Okirigiti, HakSu Jang, Changyeon Baek, Tiandong Zhang, Geon-Tae Hwang, Min-Ku Lee, Gyoung-Ja Lee, Kwi-Il Park
Sustainable Materials and Technologies.2026; 47: e01888. CrossRef - Flexible Thermoelectric Energy Harvester based on Ionic Liquid-Incorporated Bi0.5Sb1.5Te3-PVDF Composite Films
Hyejeong Choi, Jimin Lee, HakSu Jang, Nagamalleswara Rao Alluri, Jong Min Park, Wonho Choi, Kwi-Il Park
JOURNAL OF SENSOR SCIENCE AND TECHNOLOGY.2026; 35(2): 130. CrossRef - A Fabric-Based Wearable Piezoelectric Energy Harvester Fabricated by a Simple and Low-Cost Screen-Printing Technique
HyoMin Jeon, Momayi Amos Okirigiti, Dahye Shin, Kyoung Jin Jung, Kwi-Il Park
Journal of Electrical and Electronic Materials.2026; 39(3): 295. CrossRef
- Unidirectional porous PVDF Piezoelectrets fabricated via gradient ice-templating for enhanced energy harvesting performance
Critical Review
- [English]
- Epsilon Iron Oxide (ε-Fe2O3) as an Electromagnetic Functional Material: Properties, Synthesis, and Applications
- Ji Hyeong Jeong, Hwan Hee Kim, Jung-Goo Lee, Youn-Kyoung Baek
- J Powder Mater. 2024;31(6):465-479. Published online December 31, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00290
- 5,697 View
- 149 Download
- 3 Citations
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Abstract
PDF
- Iron oxide (ε-Fe₂O₃) is emerging as a promising electromagnetic material due to its unique magnetic and electronic properties. This review focuses on the intrinsic properties of ε-Fe₂O₃, particularly its high coercivity, comparable to that of rare-earth magnets, which is attributed to its significant magnetic anisotropy. These properties render it highly suitable for applications in millimeter wave absorption and high-density magnetic storage media. Furthermore, its semiconducting behavior offers potential applications in photocatalytic hydrogen production. The review also explores various synthesis methods for fabricating ε-Fe₂O₃ as nanoparticles or thin films, emphasizing the optimization of purity and stability. By exploring and harnessing the properties of ε-Fe₂O₃, this study aims to contribute to the advancement of next-generation electromagnetic materials with potential applications in 6G wireless telecommunications, spintronics, high-density data storage, and energy technologies.
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Citations
Citations to this article as recorded by- A Comprehensive Review of GPR Data Analysis for Bridge Deck Evaluation: From Conventional Methods to Emerging Artificial Intelligence Approaches
Babak Enami Alamdari, Yu Tang, Danilo Erricolo, Lesley H. Sneed
Journal of Nondestructive Evaluation.2026;[Epub] CrossRef - Chemical Pressure Induced Strain Control of Magnetic Anisotropy in the Simple Perovskite ϵ-Fe2O3
Subir Roy, Gurleen K. Uppal, Alberto Acosta, Rachel Nickel, Charles A. Roberts, Johan van Lierop
Nano Letters.2026; 26(1): 34. CrossRef - Superparamagnetism of Baked Clays Containing Polymorphs of Iron Oxides: Experimental Study and Theoretical Modeling
Petr Kharitonskii, Andrei Krasilin, Nadezhda Belskaya, Svetlana Yanson, Nikita Bobrov, Andrey Ralin, Kamil Gareev, Nikita Zolotov, Dmitry Zaytsev, Elena Sergienko
Magnetochemistry.2025; 11(12): 103. CrossRef
- A Comprehensive Review of GPR Data Analysis for Bridge Deck Evaluation: From Conventional Methods to Emerging Artificial Intelligence Approaches
Research Articles
- [Korean]
- Microstructural Effects on the Mechanical Properties of Ti-6Al-4V Fabricated by Direct Energy Deposition
- Juho Kim, Seoyeon Jeon, Hwajin Park, Taeyoel Kim, Hyunjoo Choi
- J Powder Mater. 2024;31(4):302-307. Published online August 30, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00157
- 2,335 View
- 44 Download
- 3 Citations
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Abstract
PDF
- This study explored the process-structure-property (PSP) relationships in Ti-6Al-4V alloys fabricated through direct energy deposition (DED) additive manufacturing. A systematic investigation was conducted to clarify how process variables—specifically, manipulating the cooling rate and energy input by adjusting the laser power and scan speed during the DED process—influenced the phase fractions, pore structures, and the resultant mechanical properties of the samples under various processing conditions. Significant links were found between the controlled process parameters and the structural and mechanical characteristics of the produced alloys. The findings of this research provide foundational knowledge that will drive the development of more effective and precise control strategies in additive manufacturing, thereby improving the performance and reliability of produced materials. This, in turn, promises to make significant contributions to both the advancement of additive manufacturing technologies and their applications in critical sectors.
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Citations
Citations to this article as recorded by- Microstructural and tribological performance of Ti6Al4V alloy modified by laser surface texturing
Bryan Ivan Quintanar-Abarca, Dulce Viridiana Melo-Máximo, Lizbeth Melo-Máximo, Esmeralda Uribe-Lam, Erika García-López
Journal of Materials Science.2026; 61(2): 1309. CrossRef - Recent Advances in Process Parameter Effects on Microstructure, and Mechanical Properties in Directed Energy Deposition: A Review
Milad Ala, Weiwei Liu
Archives of Computational Methods in Engineering.2026;[Epub] CrossRef - Development of Aluminum Alloys for Additive Manufacturing Using Machine Learning
Sungbin An, Juyeon Han, Seoyeon Jeon, Dowon Kim, Jae Bok Seol, Hyunjoo Choi
Journal of Powder Materials.2025; 32(3): 202. CrossRef
- Microstructural and tribological performance of Ti6Al4V alloy modified by laser surface texturing
- [English]
- Investigation of the Thermal-to-Electrical Properties of Transition Metal-Sb Alloys Synthesized for Thermoelectric Applications
- Jong Min Park, Seungki Jo, Sooho Jung, Jinhee Bae, Linh Ba Vu, Kwi-Il Park, Kyung Tae Kim
- J Powder Mater. 2024;31(3):236-242. Published online June 27, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00031
- 2,677 View
- 49 Download
- 3 Citations
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Abstract
PDF
- The development of thermoelectric (TE) materials to replace Bi2Te3 alloys is emerging as a hot issue with the potential for wider practical applications. In particular, layered Zintl-phase materials, which can appropriately control carrier and phonon transport behaviors, are being considered as promising candidates. However, limited data have been reported on the thermoelectric properties of metal-Sb materials that can be transformed into layered materials through the insertion of cations. In this study, we synthesized FeSb and MnSb, which are used as base materials for advanced thermoelectric materials. They were confirmed as single-phase materials by analyzing X-ray diffraction patterns. Based on electrical conductivity, the Seebeck coefficient, and thermal conductivity of both materials characterized as a function of temperature, the zT values of MnSb and FeSb were calculated to be 0.00119 and 0.00026, respectively. These properties provide a fundamental data for developing layered Zintl-phase materials with alkali/alkaline earth metal insertions.
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Citations
Citations to this article as recorded by- Anomalous Nernst and Hall effects in Cr-doped MnSb thin films
Sun-Woo Min, Soki Yoshida, Takuya Tsujimoto, Masato Ie, Chang-Hyeon Jo, Masaki Mizuguchi, Jung-Hyuk Koh
Applied Physics Letters.2026;[Epub] CrossRef - Improving thermoelectric properties of CuMnSb alloys via strategic alloying with magnetic MnSb and Cu
Jong Min Park, Seungki Jo, Soo-ho Jung, Jinhee Bae, Linh Ba Vu, Jihun Yu, Kyung Tae Kim
Materials Letters.2025; 381: 137796. CrossRef - Highly deformable and hierarchical 3D composite sponge for versatile thermoelectric energy conversion
Jong Min Park, Changyeon Baek, Min-Ku Lee, Nagamalleswara Rao Alluri, Gyoung-Ja Lee, Kyung Tae Kim, Kwi-Il Park
Applied Surface Science.2025; 692: 162730. CrossRef
- Anomalous Nernst and Hall effects in Cr-doped MnSb thin films
Critical Review
- [Korean]
- Smelting and Recycling of Niobium
- Ho-Sang Sohn
- J Powder Mater. 2025;32(6):517-528. Published online December 31, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00367
- 1,715 View
- 21 Download
- 2 Citations
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Abstract
PDF
- Global annual production of niobium is only around 100,000 tonnes; however, it is a critical metal for modern industry and is mined in only a limited number of regions. This study reviews the current status of niobium smelting and recycling technologies. Approximately 90% of niobium is produced as ferroniobium (FeNb) for use in steel alloys, although niobium is also utilized in superalloys, superconductors, capacitors, semiconductors, and other applications. Niobium coexists with tantalum in columbite and tantalite ores. These ores are decomposed by hydrofluoric acid digestion or alkali fusion, followed by solvent extraction to separate Nb2O5 and Ta2O5. Niobium metal and FeNb are produced from Nb2O5 primarily via aluminothermic reduction, although metallic niobium can also be manufactured by thermal reduction using Mg, Ca, or C, as well as by molten salt electrolysis. Crude niobium is subsequently refined into high-purity niobium through molten salt electrolytic refining, high-temperature vacuum treatment, and electron beam melting. Because most niobium is used as an alloying element in stainless steel and high-strength low-alloy steel, recycling practices for niobium remain poorly documented.
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Citations
Citations to this article as recorded by
Research Articles
- [English]
- 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
- J Powder Mater. 2025;32(4):288-298. Published online August 29, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00213
- 2,065 View
- 31 Download
- 2 Citations
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Abstract
PDF
- This study presents a cost-effective approach to fabricating near β-Ti alloys via in-situ alloying during laser powder bed fusion (L-PBF). A blend of non-spherical pure Ti, 3 wt.% Fe, and 0.1 wt.% SiO2 nanoparticles was used to induce β-phase stabilization and improve flowability. Twenty-five process conditions were evaluated across a volumetric energy density range of 31.75-214.30 J/mm3, achieving a maximum relative density of 99.21% at 89.29 J/mm3. X-ray diffraction analysis revealed that the β-Ti phase was partially retained at room temperature, accompanied by lattice contraction in the α’-Ti structure, indicating successful Fe incorporation. Elemental mapping confirmed that the Fe distribution was homogeneous, without significant segregation. Compared to pure Ti, the Ti-3Fe sample exhibited a 49.2% increase in Vickers hardness and notable improvements in yield and ultimate tensile strengths. These results demonstrate the feasibility of in-situ alloying with low-cost elemental powders to produce high-performance near β-Ti alloys using L-PBF.
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Citations
Citations to this article as recorded by- The Optimization of L-PBF Process for Economical & High Performance Using SiO2 Nanoparticle-Coated Non-Spherical Ti Powder
Taehu Kang, Ukju Gim, Sehun Kim, Jongik Lee, Sanghee Jeong, Jimin Han, Bin Lee
Journal of Powder Materials.2026; 33(1): 22. CrossRef - In-situ Alloying of Ti-40Nb via L-PBF Using Non-spherical Powders: Microstructure, Mechanical Properties and In vitro Cytotoxicity
Sehun Kim, Byeongseon An, Jaesung Kwon, Aruem Han, Sekwon Oh, Yewon Han, Taehu Kang, Jongik Lee, Sanghee Jeong, Jimin Han, Yujin Rhee, Bin Lee
Journal of Alloys and Compounds.2026; : 189935. CrossRef
- The Optimization of L-PBF Process for Economical & High Performance Using SiO2 Nanoparticle-Coated Non-Spherical Ti Powder
- [Korean]
- Extraction of MgSO4 from dolomite and synthesis of Mg(OH)2 in Bittern
- HyunSeung Shim, Jiyeon Kim, Areum Choi, Nuri Oh, YooJin Kim
- J Powder Mater. 2025;32(2):122-130. Published online April 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00073
- 2,289 View
- 46 Download
- 2 Citations
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Abstract
PDF
- We synthesized magnesium hydroxide using bittern and dolomite, which are domestic resources. In Bittern, there is a high concentration of Mg2+ ions, but the impurity Ca2+ ion content is also significant, requiring a purification process to remove it. There are two main methods for this purification. Firstly, there is a separation method that utilizes the difference in solubility between Mg2+ ions and Ca2+ ions by using sulfuric acid on dolomite. Adding MgSO4 solution from dolomite to Bittern removes Ca2+ ions as CaSO4. This process simultaneously purifies Ca impurities and increases the Mg/Ca ratio by adding extra Mg2+ ions. In this study, purified bittern was obtained by using dolomite and sulfuric acid to extract MgSO4, which was then used to purify Ca2+ ions. High-purity Mg(OH)2 was synthesized by optimizing the NaOH and NH4OH ratio as an alkaline precipitant.
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Citations
Citations to this article as recorded by- Microwave-assisted carbonation of magnesium hydroxide in aqueous sodium bicarbonate solution
Wonseok Hur, YooJin Kim, Duk-Young Jung
Journal of Physics and Chemistry of Solids.2026; 215: 113714. CrossRef - Synthesis and Morphology Control of Needle Type 513 MHSH and Mg(OH)2 from Dolomite
Jiyeon Kim, HyunSeung Shim, Seong-Ju Hwang, YooJin Kim
Journal of Powder Materials.2025; 32(5): 399. CrossRef
- Microwave-assisted carbonation of magnesium hydroxide in aqueous sodium bicarbonate solution
- [Korean]
- Effect of Sintering Conditions on the Microstructure of an FeCrMnNiCo High-Entropy Alloy
- Seonghyun Park, Sang-Hwa Lee, Junho Lee, Seok-Jae Lee, Jae-Gil Jung
- J Powder Mater. 2024;31(5):406-413. Published online October 31, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00185
- 2,016 View
- 42 Download
- 2 Citations
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Abstract
PDF
- We investigated the microstructure of an FeCrMnNiCo alloy fabricated by spark plasma sintering under different sintering temperatures (1000–1100°C) and times (1–600 s). All sintered alloys consisted of a single face-centered cubic phase. As the sintering time or temperature increased, the grains of the sintered alloys became partially coarse. The formation of Cr7C3 carbide occurred on the surface of the sintered alloys due to carbon diffusion from the graphite crucible. The depth of the layer containing Cr7C3 carbides increased to ~110 μm under severe sintering conditions (1100°C, 60 s). A molten zone was observed on the surface of the alloys sintered at higher temperatures (>1060°C) due to severe carbon diffusion that reduced the melting point of the alloy. The porosity of the sintered alloys decreased with increasing time at 1000°C, but increased at higher temperatures above 1060°C due to melting-induced porosity formation.
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Citations
Citations to this article as recorded by- Fabrication and Alloying Behavior of Ultra-Lightweight AlTiCrVMg High-Entropy Alloy via Al-Mg Mutual Solubility and Sintering Control
Eunhyo Song, Hansung Lee, Byungmin Ahn
Journal of Powder Materials.2025; 32(3): 254. CrossRef - Microstructure and mechanical properties of oxide-dispersion-strengthened CrMnFeCoNiC0.2O0.2 high-entropy alloy fabricated by mechanical alloying and spark plasma sintering
Sang-Hwa Lee, Seonghyun Park, Ka Ram Lim, Seok-Jae Lee, Jae-Gil Jung
Materials Science and Engineering: A.2025; 947: 149284. CrossRef
- Fabrication and Alloying Behavior of Ultra-Lightweight AlTiCrVMg High-Entropy Alloy via Al-Mg Mutual Solubility and Sintering Control
- [Korean]
- Effect of Anisotropy on the Wear Behavior of Age-Treated Maraging Steel Manufactured by LPBF
- Seung On Lim, Se-Eun Shin
- J Powder Mater. 2024;31(4):308-317. Published online August 5, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00171
- 3,129 View
- 47 Download
- 2 Citations
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Abstract
PDF
- Maraging steel has excellent mechanical properties resulting from the formation of precipitates within the matrix through aging treatment. Maraging steel fabricated by the laser powder bed fusion (LPBF) process is suitable for applications including precise components and optimized design. The anisotropic characteristic, which depends on the stacking direction, affects the mechanical properties. This study aimed to analyze the influence of anisotropy on the wear behavior of maraging steel after aging treatment. The features of additive manufacturing tended to disappear after heat treatment. However, some residual cellular and dendrite structures were observed. In the wear tests, a high wear rate was observed on the building direction plane for all counter materials. This is believed to be because the oxides formed on the wear track positively affected the wear characteristics; meanwhile, the bead shape in the stacking direction surface was vulnerable to wear, leading to significant wear.
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Citations
Citations to this article as recorded by- Unveiling age-hardening mechanisms: first-principles carbide insights and enhanced thermomechanical fatigue in niobium-bearing austenitic stainless steels
Godwin Kwame Ahiale, Jin Woong Park, Raj Narayan Hajra, Yong-Jun Oh, Won Doo Choi, Tae-Wook Na, Gi Yong Kim, Hyun-Ju Choi, Jeoung Han Kim
Materials Science and Engineering: A.2026; 949: 149397. 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
- Unveiling age-hardening mechanisms: first-principles carbide insights and enhanced thermomechanical fatigue in niobium-bearing austenitic stainless steels
Critical Review
- [English]
- Trends in Materials Modeling and Computation for Metal Additive Manufacturing
- Seoyeon Jeon, Hyunjoo Choi
- J Powder Mater. 2024;31(3):213-219. Published online June 27, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00150
- 3,590 View
- 80 Download
- 2 Citations
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Abstract
PDF
- Additive Manufacturing (AM) is a process that fabricates products by manufacturing materials according to a three-dimensional model. It has recently gained attention due to its environmental advantages, including reduced energy consumption and high material utilization rates. However, controlling defects such as melting issues and residual stress, which can occur during metal additive manufacturing, poses a challenge. The trial-and-error verification of these defects is both time-consuming and costly. Consequently, efforts have been made to develop phenomenological models that understand the influence of process variables on defects, and mechanical/electrical/thermal properties of geometrically complex products. This paper introduces modeling techniques that can simulate the powder additive manufacturing process. The focus is on representative metal additive manufacturing processes such as Powder Bed Fusion (PBF), Direct Energy Deposition (DED), and Binder Jetting (BJ) method. To calculate thermal-stress history and the resulting deformations, modeling techniques based on Finite Element Method (FEM) are generally utilized. For simulating the movements and packing behavior of powders during powder classification, modeling techniques based on Discrete Element Method (DEM) are employed. Additionally, to simulate sintering and microstructural changes, techniques such as Monte Carlo (MC), Molecular Dynamics (MD), and Phase Field Modeling (PFM) are predominantly used.
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Citations
Citations to this article as recorded by- Review of “Integrated Computer-Aided Process Engineering Session in the 17th International Symposium on Novel and Nano Materials (ISNNM, 14–18 November 2022)”
Yeon-Joo Lee, Pil-Ryung Cha, Hyoung-Seop Kim, Hyun-Joo Choi
MATERIALS TRANSACTIONS.2025; 66(1): 144. 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
- Review of “Integrated Computer-Aided Process Engineering Session in the 17th International Symposium on Novel and Nano Materials (ISNNM, 14–18 November 2022)”
Research Articles
- [Korean]
- TiO2 Thin Film Coating on an Nb-Si–Based Superalloy via Atomic Layer Deposition
- Ji Young Park, Su Min Eun, Jongmin Byun, Byung Joon Choi
- J Powder Mater. 2024;31(3):255-262. Published online June 27, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00052
- 2,559 View
- 59 Download
- 2 Citations
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Abstract
PDF
- Nano-oxide dispersion–strengthened (ODS) superalloys have attracted attention because of their outstanding mechanical reinforcement mechanism. Dispersed oxides increase the material’s strength by preventing grain growth and recrystallization, as well as increasing creep resistance. In this research, atomic layer deposition (ALD) was applied to synthesize an ODS alloy. It is useful to coat conformal thin films even on complex matrix shapes, such as nanorods or powders. We coated an Nb-Si–based superalloy with TiO2 thin film by using rotary-reactor type thermal ALD. TiO2 was grown by controlling the deposition recipe, reactor temperature, N2 flow rate, and rotor speed. We could confirm the formation of uniform TiO2 film on the surface of the superalloy. This process was successfully applied to the synthesis of an ODS alloy, which could be a new field of ALD applications.
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Citations
Citations to this article as recorded by- Interfacial Characterization of Al2O3-Coated p-Type Bi–Sb–Te Powders by Thermal and UV-assisted Atomic Layer Deposition
Jin Kyeong Shin, Yeongtae Choi, Byung Joon Choi
Journal of Powder Materials.2026; 33(3): 221. CrossRef - Engineering oxide-structured niobium composites via atomic layer deposition and spark plasma sintering
Ji Young Park, Seung-Hyeok Shin, Jongmin Byun, Byoungchul Hwang, Byung Joon Choi
Materials & Design.2026; 268: 116547. CrossRef
- Interfacial Characterization of Al2O3-Coated p-Type Bi–Sb–Te Powders by Thermal and UV-assisted Atomic Layer Deposition
- [Korean]
- Hydrogen Reduction Behavior of NCM-based Lithium-ion Battery Cathode Materials
- So-Yeong Lee, So-Yeon Lee, Dae-Hyeon Lee, Ho-Sang Sohn
- J Powder Mater. 2024;31(2):163-168. Published online April 30, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00017
- 2,323 View
- 52 Download
- 2 Citations
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Abstract
PDF
- As the demand for lithium-ion batteries for electric vehicles is increasing, it is important to recover valuable metals from waste lithium-ion batteries. In this study, the effects of gas flow rate and hydrogen partial pressure on hydrogen reduction of NCM-based lithium-ion battery cathode materials were investigated. As the gas flow rate and hydrogen partial pressure increased, the weight loss rate increased significantly from the beginning of the reaction due to the reduction of NiO and CoO by hydrogen. At 700 °C and hydrogen partial pressure above 0.5 atm, Ni and Li2O were produced by hydrogen reduction. From the reduction product and Li recovery rate, the hydrogen reduction of NCM-based cathode materials was significantly affected by hydrogen partial pressure. The Li compounds recovered from the solution after water leaching of the reduction products were LiOH, LiOH·H2O, and Li2CO3, with about 0.02 wt% Al as an impurity.
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Citations
Citations to this article as recorded by- Research Progress on Prior Lithium Extraction from Spent Lithium-Ion Battery Cathode Materials via Pyrometallurgical Roasting
Zhanyong Guo, Xiangrui Ren, Zihan Zhang, Zhen Feng, Fachuang Li
Sustainability.2026; 18(8): 4026. 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
- Research Progress on Prior Lithium Extraction from Spent Lithium-Ion Battery Cathode Materials via Pyrometallurgical Roasting
Critical Review
- [Korean]
- Research Trends in Magneto-Mechano-Electric (MME) Energy Harvesting Devices
- So Ie Jeong, Geon-Tae Hwang
- J Powder Mater. 2025;32(6):529-541. Published online December 31, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00493
- 1,633 View
- 21 Download
- 1 Citations
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Abstract
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- Magneto-mechano-electric (MME) energy harvesters have emerged as a promising solution for maintenance-free power generation in rapidly expanding Internet of Things (IoT) environments, where replacing or wiring batteries is impractical. MME devices convert weak alternating magnetic fields, ubiquitous around power infrastructures, into useful electrical energy through sequential magnetic, mechanical, and electrical transduction processes. This review summarizes recent advances across triboelectric-, piezoelectric-, and hybrid MME architectures. Triboelectric MME generators employing nano-engineered polymer surfaces, flash-induced surface modification, and nanoscale pattern replication demonstrate low-cost fabrication routes while achieving significantly enhanced voltage and current outputs. Piezoelectric MME systems based on Mn-doped PMN-PZT single crystals highlight strategies for improving mechanical quality factors and resonance-driven power generation. Further, hybrid MME designs that integrate piezoelectric and electromagnetic induction mechanisms enable high-power outputs exceeding tens of milliwatts, sufficient to operate multifunctional IoT platforms and charge practical energy-storage devices. Collectively, these studies illustrate a transition of MME harvesting technologies from laboratory concepts to application-ready self-powered systems. Future opportunities lie in broadband resonance design, modular harvester integration, advanced power management, and multi-source hybridization for robust long-term operation in real environments.
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Citations
Citations to this article as recorded by- Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
Ji Sang Yoon, Yeon Woo Kim, Gyu Hyun Park, Youk Jin Kim, Sang Heon Lee, Jeong Seok Kim, Sung Ho Yu, Jeong Min Park
Journal of Powder Materials.2026; 33(3): 177. CrossRef
- Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
Research Articles
- [Korean]
- Enhancement of the Electrochemical Performance of SiOx Anodes by Al2O3 Coating via Powder Atomic Layer Deposition
- Donggeon Shin, Yoonsoo Han
- J Powder Mater. 2025;32(6):501-508. Published online December 31, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00416
- 2,028 View
- 23 Download
- 1 Citations
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Abstract
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- Silicon based anode materials offer high theoretical capacity but suffer from severe volume expansion and unstable interfacial properties during repeated lithiation and delithiation, resulting in rapid performance degradation. In this study, a thin aluminum oxide coating layer was deposited on Si/SiOx Carbon anode materials using a powder atomic layer deposition (PALD) process to address these limitations. EDS mapping and XRD analyses confirmed the uniform formation of an amorphous aluminum oxide coating with increasing thickness as the deposition cycles increased. Electrochemical evaluation showed that the electrode coated with 5 PALD cycles exhibited approximately 78% higher capacity retention after 100 cycles at 1 A g-1 and a higher initial Coulombic efficiency compared to the bare electrode. The coated electrode also delivered approximately 22% higher capacity at a high current density of 5 A g-1, indicating enhanced rate capability. Cyclic voltammetry analysis revealed increased surface controlled reaction contributions and improved reaction kinetics. These results demonstrate that PALD derived aluminum oxide coatings effectively stabilize the electrode electrolyte interface and enhance the electrochemical performance of silicon based anodes, highlighting their potential for next generation high capacity lithium ion batteries. generation high capacity lithium ion battery anode materials.
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Citations
Citations to this article as recorded by- AlN-PVDF composite protective coating for stabilizing lithium metal anodes in lithium metal batteries
Seul Ki Choi, Yun Seung Nah, Minho Yang
Carbon Letters.2026;[Epub] CrossRef
- AlN-PVDF composite protective coating for stabilizing lithium metal anodes in lithium metal batteries
- [English]
- Finite Element and Discrete Element Analyses of Anisotropic Powder Compaction for Axial Flux Motor Cores
- Jeong Ah Lee, Do Won Lee, , Hyojeong Ha, Ki Hyuk Kwon, Eon Byeong Park, Taeyoung Kim, Hyoung Seop Kim
- J Powder Mater. 2025;32(6):451-458. Published online December 31, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00409
- 1,370 View
- 31 Download
- 1 Citations
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Abstract
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- This study investigates the compaction behavior of anisotropic, plate-like powders used in axial flux motor cores through a combined FEM–DEM approach. A porous continuum FEM model captures stress and density evolution during die pressing, revealing strong gradients along the compaction direction, with higher stress and densification near the upper punch and reduced compaction in the lower region. Guided by these results, DEM simulations examine particle packing, orientation, and contact pressure in representative zones. The DEM analysis shows that higher local pressure promotes denser packing and in-plane particle alignment near the upper punch, while the lower region exhibits more random orientations and lower contact forces. As a result, the multi-scale FEM–DEM framework clarifies how anisotropic particle behavior governs local densification and offers practical guidance for die design and process optimization to achieve more uniform density and controlled magnetic-property-relevant particle alignment in axial flux motor cores.
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Citations
Citations to this article as recorded by- Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
Ji Sang Yoon, Yeon Woo Kim, Gyu Hyun Park, Youk Jin Kim, Sang Heon Lee, Jeong Seok Kim, Sung Ho Yu, Jeong Min Park
Journal of Powder Materials.2026; 33(3): 177. CrossRef
- Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
- [Korean]
- Optimization of Mechanical Properties in WC–Mo₂C–Co Cemented Carbides via Dual Hard-Phase Based Heterogeneous Microstructure Design
- Jinwoo Seok, Jong Tae Kim, Juree Jung, SongYi Kim, Bin Lee, Junhee Han, Leeseung Kang
- J Powder Mater. 2025;32(5):428-436. Published online October 31, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00297
- 1,205 View
- 27 Download
- 1 Citations
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Abstract
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- WC–Mo₂C–Co cemented carbides were fabricated to investigate the effects of Mo₂C addition on microstructure and mechanical properties. Dual hard-phase design using WC and Mo₂C was employed to optimize the balance between hardness and toughness. Spark plasma sintering (SPS) was conducted at various temperatures after ball milling, and 1300 °C for 5 min was identified as the optimized sintering condition, achieving complete densification and phase stability. The addition of Mo₂C refined the microstructure by suppressing abnormal WC grain growth through preferential dissolution of Mo₂C into the Co binder. Hardness increased up to 1769 Hv30 due to grain refinement and solid-solution strengthening, while promoted η-phase formation and reduced fracture toughness.The 27Mo₂C composition exhibited the most balanced combination of hardness and toughness. These results demonstrate that controlled Mo₂C addition enables dual hard-phase strengthening and microstructure optimization in WC–Mo₂C–Co carbides for advanced cutting and forming applications.
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Citations
Citations to this article as recorded by- Effect of Bimodal WC Particle Size Distribution on the Mechanical Properties of WC–Mo2C–Co Cemented Carbides
Jinwoo Seok, Jong Tae Kim, Juree Jung, Bin Lee, Junhee Han, Leeseung Kang
Journal of Powder Materials.2026; 33(1): 13. CrossRef
- Effect of Bimodal WC Particle Size Distribution on the Mechanical Properties of WC–Mo2C–Co Cemented Carbides
- [Korean]
- Effect of Fe and Cr on ω Phase Formation in Metastable β-Ti Alloy
- Sun-Young Park, Young-Bum Chun
- J Powder Mater. 2025;32(4):354-360. Published online August 29, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00220
- 1,564 View
- 25 Download
- 1 Citations
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Abstract
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- This study investigated the effects of Fe and Cr contents on ω phase formation and transformation during solution treatment and the subsequent aging process, for which four model alloys with varying Fe and Cr contents but keeping Mo equivalent of ~ 12.6 were prepared by plasma arc melting and fabricated into plates by hot forging followed by hot-rolling. The atherrmal ω phase was observed in all Ti alloys after solution treatment followed by water quenching through XRD and TEM analysis. The largest volume fraction of athermal ω phase is formed in Ti alloy with only Fe 4 wt.% among all Ti alloys, leading to the highest Vickers value due to hardening effect ω phase. It was found that not only Mo equivalent but also each characteristic of β stabilizing elements should be considered to understand a microstructure evolution and mechanical properties.
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Citations
Citations to this article as recorded by- Cr-Fe ratio tunes phase stability and strength–ductility synergy in a novel metastable β titanium alloy
Zongyi Zhou, Cheng Qian, Lili Wang, Junyang Chen
Materials Letters.2026; 421: 141111. CrossRef
- Cr-Fe ratio tunes phase stability and strength–ductility synergy in a novel metastable β titanium alloy
- [Korean]
- Influence of Powder Particle Size on the Microstructure of UO2 Fuel Pellets with High Gd2O3 Content
- Ji-Hwan Lee, Jae Ho Yang, Ji-Hae Yoon, Dong-Joo Kim, Dong-wook Shin, Dong Seok Kim
- J Powder Mater. 2025;32(4):344-353. Published online August 29, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00178
- 1,727 View
- 35 Download
- 1 Citations
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Abstract
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- The recent development of small modular reactors (SMRs) and the adoption of higher-enrichment fuels have intensified the need for advanced burnable absorbers to ensure effective reactivity control and extended fuel cycles. Among various designs, UO2 fuels with high Gd2O3 (gadolinium oxide) content provide notable benefits; in particular, they are compatible with established fabrication methods for burnable absorber fuels. However, achieving a homogeneous dispersion of Gd2O3 at high loading levels remains challenging, and the frequent occurrence of phase segregation and non-uniform microstructures can limit fuel reliability and performance. Overcoming these limitations requires an understanding of the powder characteristics and mixing behaviors during fabrication. In this study, we investigate the effects of the initial particle size and mixing method of UO2 and Gd2O3 powders on the microstructure and mixing homogeneity of high-Gd2O3-content fuels. The findings indicate that both the mixing method and the preparation state of the starting powders significantly affect the resulting microstructure and mixing uniformity.
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Citations
Citations to this article as recorded by- Effect of high Gd2O3 content on the thermal conductivity of UO2-Gd2O3 fuels
Ji Hwan Lee, Jae Ho Yang, Dong Seok Kim, Ji-Hae Yoon, Dong-Joo Kim, Hyeong Jin Kim, Yunsong Jung
Nuclear Engineering and Technology.2026; 58(7): 104261. CrossRef
- Effect of high Gd2O3 content on the thermal conductivity of UO2-Gd2O3 fuels
- [Korean]
- The Recycling Process and Powderization Technology of Stellite 6 Scrap: A Thermodynamic and Heat Transfer Analysis
- YongKwan Lee, Hyun-chul Kim, Myungsuk Kim, Soong Ju Oh, Kyoungtae Park, JaeJin Sim
- J Powder Mater. 2025;32(4):330-343. Published online August 29, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00136
- 1,585 View
- 18 Download
- 1 Citations
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Abstract
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- Co-Cr alloys are widely used in cutting tools and turbine components due to their high strength and resistance against wear and corrosion. However, scrap generated during hardfacing is often discarded due to impurities and oxidation, and research on its recycling remains limited. This study aimed to optimize the recycling process of Stellite 6 scrap to reduce waste and minimize costs while maintaining material quality. Melting, casting, and powdering processes were designed using HSC Chemistry, FactSage, and COMSOL Multiphysics, with optimization of key parameters such as the crucible material and temperature control. The recycled alloy and powder were analyzed using X-ray fluorescence analysis, inductively coupled plasma optical emission spectroscopy, and X-ray diffractometry, showing mechanical and chemical properties comparable to commercial Stellite 6. The Co and Cr contents were maintained, with a slight increase in Fe. These findings demonstrate the potential for producing high-quality recycled Stellite 6 materials, contributing to the sustainable utilization of metal resources in high-performance applications.
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Citations
Citations to this article as recorded by- Fabrication and Thermal Conductivity of Boron Nitride Nano Barb/Acrylic Polymer Nanocomposites
Hyojeong Lee, Jiyeon Koo, Eunsu Park, Hyunjoo Choi
Journal of Powder Materials.2026; 33(3): 230. CrossRef
- Fabrication and Thermal Conductivity of Boron Nitride Nano Barb/Acrylic Polymer Nanocomposites
- [English]
- Laser Processing of an Al0.1CoCrFeNi High Entropy Alloy + Cu Composite Powders via Laser Powder Bed Fusion
- Kwangtae Son, Ji-Woon Lee, Soon-Jik Hong, Somayeh Pasebani
- J Powder Mater. 2025;32(4):277-287. Published online August 29, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00101
- 2,237 View
- 39 Download
- 1 Citations
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Abstract
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- This study examined process–structure relationships in laser powder bed fusion of Al₀.₁CoCrFeNi + Cu composites, focusing on densification, elemental distribution, and solidification cracking. Mechanically mixed Al₀.₁CoCrFeNi and Cu powders were processed across a range of laser powers (100–250 W) and scan speeds (200–800 mm/s). Increased volumetric energy density (VED) improved densification, with a plateau near 200 J/mm³ yielding ~96% relative density; however, this value was still below application-grade thresholds. At low VED, insufficient thermal input and short melt pool residence times promoted Cu segregation, while higher VED facilitated improved elemental mixing. Elemental mapping showed partial co-segregation of Ni with Cu at low energies. Solidification cracks were observed across all processing conditions. In high VED regimes, cracking exhibited a minimal correlation with segregation behavior and was primarily attributed to steep thermal gradients, solidification shrinkage, and residual stress accumulation. In contrast, at low VED, pronounced Cu segregation appeared to exacerbate cracking through localized thermal and mechanical mismatch.
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Citations
Citations to this article as recorded by- In-situ process monitoring and control of laser directed energy deposition using thermal imaging and computer vision
Saegis Abbott, Kassandra Hernandez, Ryan Bertelsen, Omid Hatami Farzaneh, Adam Bischoff, Doug Dingus, Dong Lin, Jesse Rodriguez, Devin J. Roach
Journal of Materials Research and Technology.2026; 42: 10851. CrossRef
- In-situ process monitoring and control of laser directed energy deposition using thermal imaging and computer vision
- [Korean]
- The Manufacturing Process of Clean Ni-Cr-Co-Based Superalloy Powder Using a Plasma Rotating Electrode
- Kyu-Sik Kim, Dae Woong Kim, Yeontae Kim, Jung Hyo Park
- J Powder Mater. 2025;32(3):222-231. Published online June 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00171
- 1,521 View
- 41 Download
- 1 Citations
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Abstract
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- Ni-based superalloys are widely used for critical components in aerospace, defense, industrial power generation systems, and other applications. Clean superalloy powders and manufacturing processes, such as compaction and hot isostatic pressing, are essential for producing superalloy discs used in turbine engines, which operate under cyclic rotating loads and high-temperature conditions. In this study, the plasma rotating electrode process (PREP), one of the most promising methods for producing clean metallic powders, is employed to fabricate Ni-based superalloy powders. PREP leads to a larger powder size and narrower distribution compared to powders produced by vacuum induction melt gas atomization. An important finding is that highly spheroidized powders almost free of satellites, fractured, and deformed particles can be obtained by PREP, with significantly low oxygen content (approximately 50 ppm). Additionally, large grain size and surface inclusions should be further controlled during the PREP process to produce high-quality powder metallurgy parts.
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Citations
Citations to this article as recorded by- Characterization of Hf, Pt-doped NiCoCrAlY powders fabricated via plasma rotating electrode process
Chengxi Wang, Bochun Zhang, Jiale Tian, Peng Song, Taihong Huang, Jilin Lei, Wei Deng, Vincent Ji
Powder Technology.2026; 480: 122628. CrossRef
- Characterization of Hf, Pt-doped NiCoCrAlY powders fabricated via plasma rotating electrode process
- [English]
- SnF2-Induced LiF Interphase for Stable Lithium Metal Anodes with Suppressed Dendrite Growth
- Yeong Hoon Jeon, Seul Ki Choi, Yun Seung Nah, Wonil Shin, Yong-Ho Choa, Minho Yang
- J Powder Mater. 2025;32(3):212-221. Published online June 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00164
- 2,723 View
- 87 Download
- 1 Citations
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Abstract
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- Lithium (Li) metal is a promising anode for next-generation batteries due to its high capacity, low redox potential, and low density. However, dendrite growth and interfacial instability limit its use. In this study, an artificial solid electrolyte interphase layer of LiF and Li-Sn (LiF@Li-Sn) was fabricated by spray-coating SnF2 onto Li. The LiF@Li-Sn anode exhibited improved air stability and electrochemical performance. Electrochemical impedance spectroscopy indicated a charge transfer resistance of 25.2 Ω after the first cycle. In symmetric cells, it maintained a low overpotential of 27 mV after 250 cycles at 2 mA/cm2, outperforming bare Li. In situ microscopy confirmed dendrite suppression during plating. Full cells with NMC622 cathodes and LiF@Li-Sn anodes delivered 130.8 mAh/g with 79.4% retention after 300 cycles at 1 C and 98.8% coulombic efficiency. This coating effectively stabilized the interface and suppressed dendrites, with promising implications for practical lithium metal batteries.
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Citations
Citations to this article as recorded by- AlN-PVDF composite protective coating for stabilizing lithium metal anodes in lithium metal batteries
Seul Ki Choi, Yun Seung Nah, Minho Yang
Carbon Letters.2026;[Epub] CrossRef
- AlN-PVDF composite protective coating for stabilizing lithium metal anodes in lithium metal batteries
- [Korean]
- Development of Aluminum Alloys for Additive Manufacturing Using Machine Learning
- Sungbin An, Juyeon Han, Seoyeon Jeon, Dowon Kim, Jae Bok Seol, Hyunjoo Choi
- J Powder Mater. 2025;32(3):202-211. Published online June 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00150
- 1,408 View
- 59 Download
- 1 Citations
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Abstract
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- The present study introduces a machine learning approach for designing new aluminum alloys tailored for directed energy deposition additive manufacturing, achieving an optimal balance between hardness and conductivity. Utilizing a comprehensive database of powder compositions, process parameters, and material properties, predictive models—including an artificial neural network and a gradient boosting regression model, were developed. Additionally, a variational autoencoder was employed to model input data distributions and generate novel process data for aluminum-based powders. The similarity between the generated data and the experimental data was evaluated using K-nearest neighbor classification and t-distributed stochastic neighbor embedding, with accuracy and the F1-score as metrics. The results demonstrated a close alignment, with nearly 90% accuracy, in numerical metrics and data distribution patterns. This work highlights the potential of machine learning to extend beyond multi-property prediction, enabling the generation of innovative process data for material design.
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Citations
Citations to this article as recorded by- Predictive Control of Magnesium Content in Industrial 5182 Aluminum Alloy Recycling Using SCADA-Guided Gradient Boosting
Mengya Wang, Jiahui Xu, Xiaohu Wang, Farid Wirawan, Mouhamadou Aziz Diop
Journal of Materials Engineering and Performance.2026;[Epub] CrossRef
- Predictive Control of Magnesium Content in Industrial 5182 Aluminum Alloy Recycling Using SCADA-Guided Gradient Boosting
- [Korean]
- 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
- J Powder Mater. 2025;32(3):244-253. Published online June 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00087
- 1,851 View
- 54 Download
- 1 Citations
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Abstract
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- Ti-6Al-4V alloy is widely utilized in aerospace and medical sectors due to its high specific strength, corrosion resistance, and biocompatibility. However, its low machinability makes it difficult to manufacture complex-shaped products. Advancements in additive manufacturing have focused on producing high-performance, complex components using the laser powder bed fusion (LPBF) process, which is a specialized technique for customized geometries. The LPBF process exposes materials to extreme thermal conditions and rapid cooling rates, leading to residual stresses within the parts. These stresses are intensified by variations in the thermal history across regions of the component. These variations result in differences in microstructure and mechanical properties, causing distortion. Although support structure design has been researched to minimize residual stress, few studies have conducted quantitative analyses of stress variations due to different support designs. This study investigated changes in the residual stress and mechanical properties of Ti-6Al-4V alloy fabricated using LPBF, focusing on support structure design.
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Citations
Citations to this article as recorded by- Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
Ji Sang Yoon, Yeon Woo Kim, Gyu Hyun Park, Youk Jin Kim, Sang Heon Lee, Jeong Seok Kim, Sung Ho Yu, Jeong Min Park
Journal of Powder Materials.2026; 33(3): 177. CrossRef
- Microstructure, Magnetic Properties, and Performance of Fe-6.5Si Soft Magnetic Core Produced by Laser Powder Bed Fusion
- [Korean]
- Fabrication and Alloying Behavior of Ultra-Lightweight AlTiCrVMg High-Entropy Alloy via Al-Mg Mutual Solubility and Sintering Control
- Eunhyo Song, Hansung Lee, Byungmin Ahn
- J Powder Mater. 2025;32(3):254-261. Published online June 12, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00059
- 1,159 View
- 34 Download
- 1 Citations
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Abstract
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- High-entropy alloys (HEAs) incorporating low-melting-point elements (Mg and Al) and high-melting-point elements (Ti, Cr, and V) were fabricated via mechanical alloying and spark plasma sintering. Sintering temperatures were varied to investigate phase behavior and microstructural evolution. X-ray diffraction was used to identify phase structures, scanning electron microscopy to analyze microstructures, X-ray fluorescence to determine elemental composition, and a gas pycnometer to measure density. Micro-Vickers hardness testing was conducted to evaluate mechanical properties. Mechanical-alloyed HEAs exhibited a body-centered cubic (BCC) phase and lamellar structures with element-enriched regions. Sintering introduced additional BCC and Laves phases, while higher temperatures promoted Mg liquid-phase sintering, increasing density and hardness. This study highlights the effects of sintering on HEAs containing elements with differing melting points to optimize their properties.
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Citations
Citations to this article as recorded by- Effect of annealing temperature on thermal expansion and cryogenic mechanical properties of low-thermal-expansion Co22.2Cr6.2Fe48.8Ni17.8Cu5.0 medium-entropy alloy
Wooyoung Lee, Munsu Choi, Sungwook Kim, Dae-Kyeom Kim, Myungsuk Song, Taek-Soo Kim, Jungwan Lee, Hyoung Seop Kim, Hyunjoo Choi, Soo-Hyun Joo
Materials Science and Engineering: A.2026; 954: 149811. CrossRef
- Effect of annealing temperature on thermal expansion and cryogenic mechanical properties of low-thermal-expansion Co22.2Cr6.2Fe48.8Ni17.8Cu5.0 medium-entropy alloy
- [Korean]
- Effect of Building Orientation on Tensile Properties of Hastelloy X alloy Manufactured by Laser Powder Bed Fusion
- Seong-June Youn, GooWon Noh, Seok Su Sohn, Young-Sang Na, Young-Kyun Kim
- J Powder Mater. 2025;32(2):131-137. Published online April 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00080
- 1,978 View
- 36 Download
- 1 Citations
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Abstract
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- In this study, the effect of build orientation on the mechanical properties of Hastelloy X fabricated by laser powder bed fusion (LPBF) process was investigated. Initial microstructural analysis revealed an equiaxed grain structure with random crystallographic orientation and annealing twins. Intragranular precipitates identified as Cr-rich M23C6 and Mo-rich M6C carbides were observed, along with a dense dislocation network and localized dislocation accumulation around the carbides. Mechanical testing showed negligible variation in yield strength with respect to build orientation; however, both ultimate tensile strength and elongation exhibited a clear increasing trend with higher build angles. Notably, the specimen built at 90° exhibited approximately 22% higher tensile strength and more than twice the elongation compared to the 0° specimen.
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Citations
Citations to this article as recorded by- Ultra-Low Temperature Mechanical Response of Laser Powder Bed Fusion–Processed C-Containing CoCrFeMnNi High-Entropy Alloy
Jae-Yong Cheon, Seong-June Youn, Young-Sang Na, Young-Kyun Kim
Journal of Powder Materials.2026; 33(3): 195. CrossRef
- Ultra-Low Temperature Mechanical Response of Laser Powder Bed Fusion–Processed C-Containing CoCrFeMnNi High-Entropy Alloy
- [Korean]
- Effect of Cellulose Fiber Density Variation on Energy Harvesting Performance in a Hydrovoltaic Generator
- Seung-Hwan Lee, So Hyun Baek, Hyun-Woo Lee, Yongbum Kwon, Kanghyuk Lee, Kee-Ryung Park, Yoseb Song, Bum Sung Kim, Ji Young Park, Yong-Ho Choa, Da-Woon Jeong
- J Powder Mater. 2025;32(2):113-121. Published online April 30, 2025
- DOI: https://doi.org/10.4150/jpm.2025.00052
- 1,900 View
- 46 Download
- 1 Citations
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Abstract
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- Energy harvesting has become a crucial technology for sustainable energy solutions; in particular, the utilization of ambient water movement in hydrovoltaic generators has emerged as a promising approach. However, optimizing performance requires an understanding of structural factors affecting energy harvesting, particularly capillary effects. This study aimed to improve hydrovoltaic generator performance by adjusting internal fiber density, which influences water transport and ion mobility. Using cold isostatic pressing, cellulose acetate (CA) loading in a urethane mold was varied to optimize internal density. As CA loading increased, the fiber arrangement became denser, narrowing capillary pathways and reducing proton mobility. While open-circuit voltage (VOC) remained stable, short-circuit current (ISC) decreased with higher CA mass. The sample with a loading of 0.3 g exhibited the highest energy harvesting efficiency, achieving ISC = 107.2 μA, VOC = 0.15 V, and power (P) = 16.7 μW. This study provides insights into methods of improving hydrovoltaic generator efficiency through internal structural modifications.
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Citations
Citations to this article as recorded by- Hydrovoltaic Electricity Generators: A Comprehensive Overview of Chemical and Architectural Designs
Kaiying Zhao, Shengyou Li, Minji Kwon, Gwanho Kim, EunAe Shin, Guangtao Zan, Cheolmin Park
Chemical Reviews.2026; 126(7): 4237. CrossRef
- Hydrovoltaic Electricity Generators: A Comprehensive Overview of Chemical and Architectural Designs
- [Korean]
- Effect of Hatch Spacing on the Microstructure and Mechanical Properties of SA508 Gr.3 Steel Fabricated by Laser Powder Bed Fusion
- Yuanjiu Huang, Ho Jin Ryu, Kee-Ahn Lee
- J Powder Mater. 2025;32(1):50-58. Published online February 28, 2025
- DOI: https://doi.org/10.4150/jpm.2024.00479
- 1,846 View
- 29 Download
- 1 Citations
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Abstract
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- This study investigated the effect of the hatch spacing parameter on the microstructure and mechanical properties of SA508 Gr.3 steel manufactured by laser powder bed fusion (L-PBF) for a nuclear pressure vessel. Materials were prepared with varying hatch spacing (0.04 mm [H4] and 0.06 mm [H6]). The H4 exhibited finer and more uniformly distributed grains, while the H6 showed less porosity and a lower defect fraction. The yield strength of the H4 material was higher than that of the H6 material, but there was a smaller difference between the materials in tensile strength. The measured elongation was 5.65% for the H4 material and 10.41% for the H6 material, showing a significantly higher value for H6. An explanation for this is that although the H4 material had a microstructure of small and uniform grains, it contained larger and more numerous pore defects than the H6 material, facilitating stress concentration and the initiation of microcracks.
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Citations
Citations to this article as recorded by- Extremely low temperature mechanical behavior of in-situ oxide containing 304L stainless steel fabricated by laser powder bed fusion
Kwangtae Son, Seung-Min Jeon, Brian K. Paul, Young-Sang Na, Kijoon Lee, Young-Kyun Kim
Journal of Materials Science & Technology.2025; 234: 319. CrossRef
- Extremely low temperature mechanical behavior of in-situ oxide containing 304L stainless steel fabricated by laser powder bed fusion
- [English]
- Comparative Study of Reduced Graphene Oxide Aerogels and Films for Supercapacitor Electrodes
- Sunghee Choi, Seulgi Kim, Seojin Woo, Dongju Lee
- J Powder Mater. 2025;32(1):23-29. Published online February 28, 2025
- DOI: https://doi.org/10.4150/jpm.2024.00472
- 2,748 View
- 40 Download
- 1 Citations
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Abstract
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- Supercapacitors, renowned for their high power density and rapid charge-discharge rates, are limited by their low energy density. This limitation has prompted the need for advanced electrode materials. The present study investigated reduced graphene oxide (rGO) in two distinct structures, as a film and as an aerogel, for use as supercapacitor electrodes. The rGO film, prepared by vacuum filtration and thermal reduction, exhibited a compact, lamellar structure, while the aerogel, synthesized through hydrothermal treatment, was a highly porous three-dimensional network. Electrochemical analyses demonstrated the aerogel’s superior performance, as shown by a specific capacitance of 121.2 F/g at 5 mV/s, with 94% capacitance retention after 10,000 cycles. These findings emphasize the importance of structural design in optimizing ion accessibility and charge transfer. They also demonstrate the potential of rGO aerogels for increasing the energy storage efficiency of advanced supercapacitor systems.
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Citations
Citations to this article as recorded by- Laser-Induced Porous Graphene Electrodes for Flexible Heater
Min Gi An, Jaehak Lee, Jung Hwan Park
Journal of Powder Materials.2025; 32(6): 492. CrossRef
- Laser-Induced Porous Graphene Electrodes for Flexible Heater
- [English]
- Effect of the Cross-rolling Process on the Microstructures and Mechanical Properties of 9Cr-1W ODS Steel
- Bu-An Kim, Sanghoon Noh
- J Powder Mater. 2025;32(1):37-42. Published online February 28, 2025
- DOI: https://doi.org/10.4150/jpm.2024.00332
- 1,620 View
- 34 Download
- 1 Citations
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Abstract
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- This study employed a cross-rolling process to fabricate oxide dispersion strengthened (ODS) steel plates and investigated their microstructures and mechanical properties. The 9Cr-1W ODS ferritic steel was fabricated using mechanical alloying and hot isostatic pressing. The hot cross-rolling process produced thick ODS ferritic steel plates with a well-extended rectangular shape. The working direction greatly affected the grain structure and crystal texture of the ODS ferritic steel. Cross-rolled plates showed fine micro-grains with random crystal orientation, while unidirectionally rolled plates exhibited a strong orientation with larger, elongated grains. Transmission electron microscopy revealed a uniform distribution of nano-oxide particles in both rolling methods, with no major differences. Tensile tests of the ODS ferritic steel plates showed that the unidirectional rolled plates had anisotropic elongation, while cross-rolled plates exhibited isotropic behavior with uniform elongation. Cross-rolling produced finer, more uniform grains, reducing anisotropy and improving mechanical properties, making it ideal for manufacturing wide ODS steel components.
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Citations
Citations to this article as recorded by- Transverse Cold Rolling-Induced Microstructural Modification and Mechanical and Electrochemical Responses of UNS S32304 Lean Duplex Stainless Steel
Victor Hugo Mafra Monfredo Ferreira, Arthur Ecard Guimarães, Mauricio dos Santos Azevedo, Guilherme Yuuki Koga, Ivan Napoleão Bastos, Luis Cesar Rodríguez Aliaga, Leandro de Amorim Ratamero, Francisco Gil Coury, Verona Biancardi Aguiar
Journal of Materials Engineering and Performance.2026;[Epub] CrossRef
- Transverse Cold Rolling-Induced Microstructural Modification and Mechanical and Electrochemical Responses of UNS S32304 Lean Duplex Stainless Steel
- [English]
- Design of Conductive Inks Containing Carbon Black and Silver Nanowires for Patternable Screen-Printing on Fabrics
- Seokhwan Kim, Geumseong Lee, Jinwoo Park, Dahye Shin, Ki-Il Park, Kyoung Jin Jung, Yuho Min
- J Powder Mater. 2024;31(6):500-507. Published online December 31, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00409
- 3,580 View
- 80 Download
- 1 Citations
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Abstract
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- This study developed conductive inks composed of carbon black (CB) and silver nanowires (Ag NWs) for cost-effective screen-printing on fabrics. The Ag NW density within the CB matrix was precisely controlled, achieving tunable electrical conductivity with minimal Ag NW usage. The resulting inks were successfully patterned into shapes such as square grids and circles on textile surfaces, demonstrating excellent conductivity and fidelity. Adding 19.9 wt% Ag NWs reduced sheet resistance by ~92% compared to CB-only inks, highlighting the effectiveness and potential of this hybrid approach for cost-effective, high-performance textile-based electronics. The one-dimensional morphology of Ag NWs facilitated the formation of conductive percolation networks, creating efficient electron pathways within the CB matrix even at low loadings. This work advances the field of CB-based conductive inks and provides a scalable and practical method for producing functional, patterned electronic textiles.
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Citations
Citations to this article as recorded by- Multifunctional Screen-Printed Conductive Inks: Design Principles, Performance Challenges, and Application Horizons
Nahid Islam, Manisha Das, Bashir Ahmed Johan, Syed Shaheen Shah, Atif Saeed Alzahrani, Md. Abdul Aziz
ACS Applied Electronic Materials.2025; 7(16): 7503. CrossRef
- Multifunctional Screen-Printed Conductive Inks: Design Principles, Performance Challenges, and Application Horizons
- [Korean]
- Fabrication and High-Temperature Performance Evaluation of Light-Weight Insulation Materials and Coatings for Reusable Thermal Protection Systems
- Min-Soo Nam, Jong-Il Kim, Jaesung Shin, Hyeonjun Kim, Bum-Seok Oh, Seongwon Kim
- J Powder Mater. 2024;31(6):521-529. Published online December 31, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00318
- 2,602 View
- 74 Download
- 1 Citations
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Abstract
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- Light-weight ceramic insulation materials and high-emissivity coatings were fabricated for reusable thermal protection systems (TPS). Alumina-silica fibers and boric acid were used to fabricate the insulation, which was heat treated at 1250 °C. High-emissivity coating of borosilicate glass modified with TaSi2, MoSi2, and SiB6 was applied via dip-and-spray coating methods and heat-treated at 1100°C. Testing in a high-velocity oxygen fuel environment at temperatures over 1100 °C for 120 seconds showed that the rigid structures withstood the flame robustly. The coating effectively infiltrated into the fibers, confirmed by scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction analyses. Although some oxidation of TaSi2 occurred, thereby increasing the Ta2O5 and SiO2 phases, no significant phase changes or performance degradation were observed. These results demonstrate the potential of these materials for reusable TPS applications in extreme thermal environments.
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Citations
Citations to this article as recorded by- Durability Assessment of Tile-Type Reusable Thermal Protection Materials
Minjeong Kim, Seong Man Choi
Materials.2026; 19(2): 303. CrossRef
- Durability Assessment of Tile-Type Reusable Thermal Protection Materials
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