Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Effect of Atmospheric Gas on the Size and Distribution of Cu Nano Powders Synthesized by Pulsed Wire Evaporation Method

전기 폭발법에 의해 제조된 나노 구리 분말의 크기와 분포에 미치는 조업 가스의 영향

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  • ;
  • ;
  • Y. A. Kotov
  • 이근희 (한국원자력연구소, 원자력재료기술개발부) ;
  • 이창규 (한국원자력연구소, 원자력재료기술개발) ;
  • 김흥회 (한국원자력연구소, 원자력재료기술개발) ;
  • Published : 2004.06.01
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Abstract

The possibility to decrease agglomeration of Cu nano powders and their separation during pulsed wire evaporation (PWE) process was investigated by controlling the working gas system, i.e., the design of the gas path, the type and pressure of the atmospheric gas. As a result, it was possible to choose the optimal design of the gas path providing large specific surface area and high degree of separation of the synthesized Cu nano powders. It was also shown that an Ar+10∼50$N_2$ mixture can be used in production of Cu nano powders, which do not react with nitrogen.

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