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| Friction/Wear Properties of Ta–Doped TiO2 Films on Surface of Nano–Grained Ti |
| YU Chunhang, SHAO Honghong, XU Xiaojing, ZHAI Rui |
| School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013 |
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Cite this article:
YU Chunhang SHAO Honghong XU Xiaojing ZHAI Rui. Friction/Wear Properties of Ta–Doped TiO2 Films on Surface of Nano–Grained Ti. Chin J Mater Res, 2011, 25(4): 433-438.
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Abstract The friction/wear properties of TiO2 films with different Ta-doped content deposited on surface of nano-grained Ti by DC reactive magnetron sputtering technology at room temperature were investigated. The results show that the Ta-doped TiO2 films exhibit the specific wear rate on the order of 10-6--10-5 mm3 • m-1• N-1 sliding against a stainless steel quenched ball (2 mm in radius) at room temperature by simulation body fluid. With the increasing Ta content in TiO2 films, the friction coefficient and wear rate of TiO2 films were gradually decreased and then increased. And the TiO2 film with about 22% Ta–doped has the smallest friction coefficient (0.20) and wear rate (1.5×10-6 mm3 • m-1• N-1). The good wear-resistance of the TiO2 films with about 22% Ta–doped is in accordance with its high hardnessto-modulus ratio, good corrosion-resistance and low friction coefficient.
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Received: 08 April 2011
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| Fund: Supported by the National Key Natural Science Foundation of China No.51074079. |
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