物理化学学报 >> 2010, Vol. 26 >> Issue (08): 2317-2322.doi: 10.3866/PKU.WHXB20100816

材料物理化学 上一篇    

Cu掺杂TiO2薄膜的摩擦学性能

晁闻柳1, 万勇1, 万 勇1, 王云霞2, 刘长松1   

  1. 1. 青岛理工大学机械工程学院, 山东 青岛 266033;
    2. 中国科学院兰州化学物理研究所, 固体润滑国家重点实验室, 兰州 730000
  • 收稿日期:2010-01-25 修回日期:2010-04-02 发布日期:2010-07-23
  • 通讯作者: 万勇 E-mail:wanyong@qtech.edu.cn
  • 基金资助:

    山东省自然科学基金(Y2008F05)和青岛市应用基础研究基金(09-1-3-35-jch)资助项目

Tribological Properties of Cu-Doped TiO2 Films

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

  1. 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).

摘要:

采用溶胶-凝胶法在普通玻璃基底上制备了纯TiO2和Cu掺杂的TiO2 (Cu-TiO2)纳米结构薄膜, 利用X射线光电子能谱(XPS)、原子力显微镜(AFM)、粉末X射线衍射(XRD)及UMT-3摩擦磨损试验机考察了Cu掺杂量对薄膜组成、结构、表面形貌及摩擦学性能的影响. 结果表明, 相比于纯TiO2薄膜, Cu掺杂TiO2纳米薄膜平整、均匀, 具有较好的耐磨减摩性能. Cu掺杂量的多少直接影响Cu-TiO2薄膜的减摩抗磨性能, 当Cu掺杂量为5%(摩尔分数)时, Cu-TiO2膜具有最佳的耐磨寿命和最低的摩擦系数.

关键词: TiO2, 溶胶凝胶, 薄膜, 铜掺杂, 摩擦学性能

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

MSC2000: 

  • O647