Structure and tribological properties of Ti-containing amorphous carbon coatings prepared by cathode arc-enhanced middle-frequency magnetron sputtering

LOW ENERGY ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS

Structure and tribological properties of Ti-containing amorphous carbon coatings prepared by cathode arc-enhanced middle-frequency magnetron sputtering

YANG Bing，

HUANG Zhi-Hong，

FAN Xiang-Jun，

FU De-Jun

Nuclear Science and Techniques

Vol.17, No.2

pp.78-82

Published in print 20 Apr 2006

DOI：10.1016/S1001-8042(06)60016-X

CLC：O484.4

32800

Ti-containing amorphous carbon (Ti-aC) coatings were deposited on cemented carbide and Si substrates by cathode-arc-enhanced closed field middle-frequency unbalanced magnetron sputtering. The coatings were studied by using atomic force microscopy, Raman scattering, nanoindentation, and pin-on-disk testing. The measurements showed that the hardness of the coatings increased from 12 GPa at a Ti content of 1 at.% to 27 GPa at 31 at.%. The coatings exhibited different friction behaviors when facing different mating materials and changed with increasing Ti content. The coating with 4 at.% Ti exhibited excellent tribological performance with a low friction coefficient of 0.07 when facing the cemented carbide.

Arc-enhanced magnetron sputteringDiamond-like carbonHardnessTribological performance

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