Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Tribological Properties of Cu-Ni Alloy Nanopowders Synthesized by Pulsed Wire Evaporation (PWE) Method

전기 폭발법에 의해 제조된 Cu-Ni 나노 분말의 윤활성 향상

  • Oh J.S. (Dept. of Nuclear Materials Technology Development, Korea Atomic Energy Reseach Institute) ;
  • Park J.H. (Dept. of Nuclear Materials Technology Development, Korea Atomic Energy Reseach Institute) ;
  • Kim W.W. (Dept. of Nuclear Materials Technology Development, Korea Atomic Energy Reseach Institute) ;
  • Rhee C.K. (Dept. of Nuclear Materials Technology Development, Korea Atomic Energy Reseach Institute)
  • 오정석 (한국원자력연구소, 원자력재료기술개발부) ;
  • 박중학 (한국원자력연구소, 원자력재료기술개발부) ;
  • 김흥회 (한국원자력연구소, 원자력재료기술개발부) ;
  • 이창규 (한국원자력연구소, 원자력재료기술개발부)
  • Published : 2004.10.01
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Abstract

Nanoscale Cu-Ni alloy nanopowders have been produced by a pulsed wire evaporation method in an inert gas. The effect of Cu-Ni alloy nanopowders as additives to motor oil on the tribological properties was studied at room temperature. The worn surfaces were characterized by Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray Spectroscopy (EDS). Cu-Ni alloy nanopowders as additives lowered coefficient of friction and wear rate. It was found that a copper containing layer on the worn surface was formed, and deposited layers of the metal cladding acted as lubricant on the worn surface, reducing the friction coefficient. It was clearly demonstrated that Cu-Ni alloy nanopowders as additives are able to restore the worn surface and to preserve the friction surfaces from wear.

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References

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