Cu掺杂TiO2薄膜的摩擦学性能

doi:10.3866/PKU.WHXB20100816

Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (08): 2317-2322.doi: 10.3866/PKU.WHXB20100816

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles

Tribological Properties of Cu-Doped TiO₂ Films

CHAO Wen-Liu¹, WAN Yong¹, WANG Yun-Xia², LIU Chang-Song¹

1. School of Mechanical Engineering, Qingdao Technological University, Qingdao 266033, Shandong Province, P. R. China;
2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China

Received:2010-01-25 Revised:2010-04-02 Published:2010-07-23
Contact: WAN Yong E-mail:wanyong@qtech.edu.cn
Supported by:
The project was supported by the Natural Science Foundation of Shandong Province, China (Y2008F05) and Applied and Basic Research Foundation of Qingdao, China (09-1-3-35-jch).

Abstract

Abstract:

Undoped TiO₂ and Cu-doped TiO₂ (Cu-TiO₂) nano-structured thin films were prepared by a sol-gel process on glass substrates. We investigated their structures, surface morphologies, and tribological properties by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), X-ray diffraction (XRD), and friction and wear testing using a UMT-3 tester. We found that the prepared Cu-TiO₂ films were smoother and more uniform than the undoped TiO₂ films and they had better friction-reducing and anti-wear properties. The amount of Cu dopant directly affects the tribological performance of the doped TiO₂ film. The 5%(mole fraction) Cu-TiO₂ film possesses the longest wear life and the lowest friction coefficient.

Key words: TiO₂, Sol-gel, Thin film, Cu doped, Tribological property

CHAO Wen-Liu, WAN Yong, WANG Yun-Xia, LIU Chang-Song. Tribological Properties of Cu-Doped TiO₂ Films[J]. Acta Phys. -Chim. Sin. 2010, 26(08), 2317-2322. doi: 10.3866/PKU.WHXB20100816

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Tribological Properties of Cu-Doped TiO2 Films

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