Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrical properties and a comparison of W/Cu and WC/Cu contacts

W/Cu 접점과 WC/Cu 접점의 전기적특성과 비교

  • 이희웅 (한국전기연구소 전기재료연구부 도전.자성재료연구실) ;
  • 변우봉 (한국전기연구소 전기재료연구부 도전.자성재료연구실) ;
  • 한세원 (한국전기연구소 전기재료연구부 도전.자성재료연구실)
  • Published : 1988.05.27
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Abstract

Four W/Cu system(60wt%W-40wt%Cu, -0.lwt%Ni, -0.5wt%Ni, -0.lwt%C) and four WC/Cu system(60wt%WC-40wt%Cu, -0.lwt%Ni, -0.5wt%Ni, 0.lwt%C) electrical contacts were prepared by a press-sinter-infiltration process to compare with their properties. Hardness and electrical conductivity are proportional to the refractory metal(W or WC) properties and showed the effect of additives. Arc erosion trend of switch test is changed by current level. High currant test at 1kA showed a different crack formation pattern and erosion mode between W/Cu system and WC/Cu system contacts.

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