Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Characteristics of Nano-dispersed Powder by Electric Explosion of Conductors

  • Kwon, Young-Soon (Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan) ;
  • Kim, Ji-Soon (Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan) ;
  • Moon, Jin-Soo (Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan) ;
  • Kim, Hwan-Tae (Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan) ;
  • Ilyin, Alexander-P (Government Scientific Establishment High Voltage Research Institute at Tomsk Polytechnic University) ;
  • Rhee, Chang-Kyu (Nuclear Materials Development Team, Korea Atomic Energy Research Institute) ;
  • Rim, Geun-Hie (Korea Electrotechnology Institute)
  • Published : 2003.12.01
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Abstract

The phenomenon of electrical explosion of conductors is considered in the context of the changes in the energy and structural states of the metal at the stages of energy delivery and relaxation of the primary products of EEC. It is shown that these changes are related to the forced interaction of an intense energy flux with matter and to the subsequent spontaneous relaxation processes. The characteristics of nano-sized metal powders are also discussed. The preferential gas media during EEC is Ar+$H_2$. An increase in $e/e_s$ (in the range of values studied) leads to a reduction in the metal content. For reactive powders obtained with high metal content, it is necessary to separate the SFAP fractions, which settled on the negative electrode of the electric filter.

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References

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