Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (8): 145-149.

• Materials Science & Technology • Previous Articles     Next Articles

Electrical Breakdown Behavior of Titanium Surface During Micro-Arc Oxidation

Chen Xing-yu  Zhao Zhong-wei  Chen Ai-liang  Huo Guang-sheng   

  1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, Hunan, China
  • Received:2008-06-04 Revised:2008-09-09 Online:2009-08-25 Published:2009-08-25
  • Contact: 陈星宇（1980-），男，博士生，主要从事生物功能材料的研究 E-mail:csucxy@yahoo.com.cn
  • About author:陈星宇（1980-），男，博士生，主要从事生物功能材料的研究．
  • Supported by:

    国家自然科学基金资助项目（50674105）

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Abstract:

:By analyzing the voltage and breakdown voltage of titanium surface in the micro-arc oxidation process varying with the time, the solution concentration and the applied current density, the surface electrical breakdown behaviors of titanium in different electrolyte solutions are investigated. The results show that  in the micro-arc oxidation process, the electrode voltage uniformly and crenellatedly varies with the time and decreases with the increase in concentrations of two electrolyte solutions;  the breakdown voltage of the ceramic membrane surface exponentially decays with the increase of solution concentration; and  at a certain solution concentration, the breakdown voltage has no obvious relation to the applied current intensity.

Key words: micro-arc oxidation, titanium, breakdown voltage