Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Ag-Cu Powders Prepared by Electrical Wire Explosion of Cu-plated Ag Wires

동도금한 은선재의 전기선폭발에 의해 제조한 Ag-Cu분말

  • Kim, Won-Baek (Minerals and Materials Processing Division Korea Institute of Geoscience, Mining and Materials) ;
  • Park, Je-Shin (Minerals and Materials Processing Division Korea Institute of Geoscience, Mining and Materials) ;
  • Suh, Chang-Youl (Minerals and Materials Processing Division Korea Institute of Geoscience, Mining and Materials)
  • 김원백 (한국지질자원연구원 자원활용소재연구부) ;
  • 박제신 (한국지질자원연구원 자원활용소재연구부) ;
  • 서창열 (한국지질자원연구원 자원활용소재연구부)
  • Published : 2007.10.28
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Abstract

Ag-Cu alloy nano powders were fabricated by the electrical explosion of Cu-plated Ag wires. Ag wires of 0.2mm diameter was electroplated to final diameter of 0.220 mm and 0.307 mm which correspond to Ag-27Cu and Ag-68Cu alloy. The explosion product consisted of equilibrium phases of ${\alpha}-Ag$ and ${\beta}$-Cu. The particle size of Ag-Cu nano powders were 44 nm and 70 nm for 0.220 mm and 0.307 mm wires, respectively. The Ag-Cu nano powders contained less Cu than average value due to higher sublimation energy compared to that of Ag. As a result, micron-sized spherical particles formed from liquid droplets contained higher Cu content.

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References

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