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Improvement of Tribological Behaviour of Biomedical Nanocrystalline Titanium by Magnetron Sputtered CNx/SiC Double Layer Films

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Abstract:

The nano-indentation response and the friction and wear properties of the CNx/SiC (carbon nitride /silicon carbon) double layer thin films (SiC films as interlayer) deposited on nanocrystalline titanium substrate using magnetron sputtering technique at room temperature were investigated. The results show that the CNx films exhibited a low nano-hardness of 8.0 GPa and Young's modulus of 55.0 GPa but a high hardness-to-modulus ratio of 0.146. As sliding against Si3N4 (silicon nitride) ball under Kokubo simulation body fluid (SBF) at room temperature, the CNx films exhibited the superior tribological properties with the friction coefficients of about 0.1 and the special wear rate of about 1.6×10−6 mm3/Nm.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

825-828

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.825

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Online since:

July 2011

Authors:

Jia Ming Ji, Xiao Jing Xu, Dan Chen, Xi Ling Xin, Kun Tian, Xin Lan Sheng

Keywords:

Friction and Wear, Nanostructured Metal, Simulation Body Fluid, Surface Engineering

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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