Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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Tribology of Cu-based Electrical Contacts in Slipring-Brush Assembly

구리 기지 복합재료의 전기적 접촉에 의한 마찰 마모 특성에 관한 연구

  • Park, Hyung-Kyu (Division of Materials Science and Engineering, Korea University) ;
  • Jang, Ho (Division of Materials Science and Engineering, Korea University)
  • 박형규 (고려대학교 재료금속공학부) ;
  • 장호 (고려대학교 재료금속공학부)
  • Published : 2000.06.01
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Abstract

Friction characteristics and electrical resistance of sliding contacts in slipring-brush assembly were investigated. Four brush materials containing relative amounts of copper and graphite were studied. The result showed that a copper-graphite brush at a particular graphite content exhibited the most stable frictional and electrical behaviour suggesting an optimum amount of solid lubricant in metal-graphite brush system. Microscopic observation and the surface analysis showed good agreement with this phenomena.

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