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http://dx.doi.org/10.4150/KPMI.2004.11.5.376

Tribological Properties of Cu-Ni Alloy Nanopowders Synthesized by Pulsed Wire Evaporation (PWE) Method  

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)
Publication Information
Journal of Powder Materials / v.11, no.5, 2004 , pp. 376-382 More about this Journal
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.
Keywords
Tribological; Cu-Ni alloy; Nanopowder; Electrical explosion;
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