Synthesis and Compaction of Al-based Nanopowders by Pulsed Discharge Method

Chang-Kyu Rhee; Geun-Hee Lee; Whung-Whoe Kim

doi:10.4150/KPMI.2002.9.6.433

Articles

Page Path: HOME > J Korean Powder Metall Inst > Volume 9(6); 2002 > Article


Synthesis and Compaction of Al-based Nanopowders by Pulsed Discharge Method: Chang-Kyu Rhee, Geun-Hee Lee, Whung-Whoe Kim; Journal of Korean Powder Metallurgy Institute 2002;9(6):433-440
DOI: https://doi.org/10.4150/KPMI.2002.9.6.433

¹Korea Atomic Energy Research Institute
²Korea Atomic Energy Research Institute
³Korea Atomic Energy Research Institute

prev next

291 Views
2 Download
11 Crossref
0 Scopus

Full Article

Download PDF

Abstract

Synthesis and compaction of Al-base nano powders by pulsed discharge method were investigated. The aluminum based powders with 50 to 200 nm of diameter were produced by pulsed wire evaporation method. The powders were covered with very thin oxide layer. The perspective process for the compaction and sintering of nanostructured metal-based materials stable in a wide temperature range can be seen in the densification of nano-sized metal powders with uniformly distributed hard ceramic particles. The promising approach lies in utilization of natural uniform mixtures of metal and ceramic phases, e.g. partially oxidized metal powders as fabricated in our synthesis method. Their particles consist of metal grains coated with oxide films. To construct a metal-matrix material from such powder, it is necessary to destroy the hard oxide coatings of particles during the compaction process. This goal was realized in our experiments with intensive magnetic pulsed compaction of aluminum nanopowders passivated in air.

Keywords: Aluminium nano powder;Pulsed wire evaporation;Magnetic pulsed compaction;

Figure & Data

References

Citations

Citations to this article as recorded by

Thermodynamic modeling and characterizations of Al nanoparticles produced by electrical wire explosion process
L. Santhosh Kumar, S.R. Chakravarthi, R. Sarathi, R. Jayaganthan
Journal of Materials Research.2017; 32(4): 897. CrossRef
Electrochemical properties of Sn/C nanoparticles fabricated by redox treatment and pulsed wire evaporation method
Ju-Seok Song, Gyu-Bong Cho, Jou-Hyeon Ahn, Kwon-Koo Cho
Applied Surface Science.2017; 415: 14. CrossRef
Investigation of Nano-Molybdenum Carbide Particle Produced by Wire-Explosion Process
Ramanujam Sarathi, Ravula Sugunakar Reddy, Rashmi S. Tavarmani, Akira Okamoto, Hisayuki Suematsu, Parasuraman Selvam, Uthandi Kamachi Mudali, Muthusamy Kamaraj
IEEE Transactions on Plasma Science.2015; 43(10): 3470. CrossRef
Synthesis and characterization of hexagonal nano tungsten carbide powder using multi walled carbon nanotubes
S. Aravinth, Binu Sankar, M. Kamaraj, S.R. Chakravarthy, R. Sarathi
International Journal of Refractory Metals and Hard Materials.2012; 33: 53. CrossRef
Synthesis and characterization of copper nanoparticles by using the exploding wire method
Rashmita Das, Basanta Kumar Das, Anurag Shyam
Journal of the Korean Physical Society.2012; 61(5): 710. CrossRef
Generation and characterization of nano-tungsten carbide particles by wire explosion process
B. Debalina, M. Kamaraj, B.S. Murthy, S.R. Chakravarthi, R. Sarathi
Journal of Alloys and Compounds.2010; 496(1-2): 122. CrossRef
Understanding the mechanism of nano-aluminum particle formation by wire explosion process using optical emission technique
Jobin K. Antony, Nilesh J. Vasa, S.R. Chakravarthy, R. Sarathi
Journal of Quantitative Spectroscopy and Radiative Transfer.2010; 111(17-18): 2509. CrossRef
Understanding nanoparticle formation by a wire explosion process through experimental and modelling studies
T K Sindhu, R Sarathi, S R Chakravarthy
Nanotechnology.2008; 19(2): 025703. CrossRef
Generation and characterization of nano aluminium powder obtained through wire explosion process
T. K. Sindhu, R. Sarathi, S. R. Chakravarthy
Bulletin of Materials Science.2007; 30(2): 187. CrossRef
Impact of binary gas on nano-aluminium particle formation through wire explosion process
R. Sarathi, T.K. Sindhu, S.R. Chakravarthy
Materials Letters.2007; 61(8-9): 1823. CrossRef
Generation of nano aluminium powder through wire explosion process and its characterization
R. Sarathi, T.K. Sindhu, S.R. Chakravarthy
Materials Characterization.2007; 58(2): 148. CrossRef

Cited

Related articles