Low friction properties of nano-structured C-Ni films prepared by thermionic vacuum arc method
by C.P. Lungu, A.M. Lungu, P. Chiru, O.G. Pompilian, A. Tudor, R. Brescia
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 4, No. 2, 2010

Abstract: Nano-structured C-Ni coatings were prepared using the thermionic vacuum arc method and tribological properties were evaluated in order to obtain carbon-metal layers to act as solid lubricants. The C-Ni films prepared by TVA method were characterised as a metallic complex of nano-crystals (5 nm average diameter) surrounded by carbon amorphous structures with a strong graphitisation tendency. The coefficients of friction of the coatings, measured using a CSM ball-on-disc tribometer, were in the range of 0.19-0.27 3-5 times lower than the uncoated substrates.

Online publication date: Fri, 18-Dec-2009

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