| DENG Shu_hao,YI Dan-qing,LIU Yao-qiong,LI Hui,CHEN Jun.Electrochemical Preparation and Performance of Biological Ceramic Film on Titanium Alloy[J],37(6):5-9 |
| Electrochemical Preparation and Performance of Biological Ceramic Film on Titanium Alloy |
| Received:August 25, 2008 Revised:December 10, 2008 |
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| DOI： |
| KeyWord:Titanium alloy Biological ceramic film Micro-arc oxidation Biological activity |
| Author | Institution |
| DENG Shu_hao |
1. School of Materials Science and Engineering, Central South University, Changsha , China; 2. The Key Laboratory of Nonferrous Metal, Materials Science and Engineering, Ministry of Education, Changsha , China |
| YI Dan-qing |
1. School of Materials Science and Engineering, Central South University, Changsha , China; 2. The Key Laboratory of Nonferrous Metal, Materials Science and Engineering, Ministry of Education, Changsha , China |
| LIU Yao-qiong |
1. School of Materials Science and Engineering, Central South University, Changsha , China; 2. The Key Laboratory of Nonferrous Metal, Materials Science and Engineering, Ministry of Education, Changsha , China |
| LI Hui |
School of Materials Science and Engineering, Central South University, Changsha , China |
| CHEN Jun |
School of Materials Science and Engineering, Central South University, Changsha , China |
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| Abstract: |
| The optimum technique of micro-arc oxidiation for preparing biological activity ceramic film on titanium m an environment-friendly electrolyte was confirmed by orthogonal design. The result shows that the optimum condition of micro-arc oxidation process is as follows: 5g/L of magnecate, 40g/L of silicate, 5g/L of additive, 165 mA/cm2 for oxidation current density, 35 0C for solution temperature and it can obtain 6 ~ lOμm grey and smooth coating for 30 min oxidation. The coating contains abundant anatase and a little magnesium titanate, and exhibites ceramics performance. A large number of porous with uinform diameter distributes throughout the coating, which exhibites a certain extent coarseness. The oxidation film has better hydrophilicity than titanium matrix in the bionic solution. Apatite with biological activity can form on the oxidation film when the oxidation film is soaked in a saturated solution of calcium and phosphorus. |
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