| 阴极沉积羟基磷灰石的成核机理 |
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| 引用本文： | 陈爱良,赵中伟,陈星宇,贾喜君,陈进.阴极沉积羟基磷灰石的成核机理[J].稀有金属与硬质合金,2005,33(4):1-3,12. |
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| 作者姓名： | 陈爱良 赵中伟 陈星宇 贾喜君 陈进 |
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| 作者单位： | 1. 中南大学冶金科学与工程学院,湖南,长沙,410083
2. 中国矿业大学,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目（50104012） |
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| 摘 要： | 通过恒电位沉积羟基磷灰石研究了其成核动力学，不同电位下的暂态i-t曲线不同，但是发现在不同的电位下，其i-t^1/2曲线都呈直线关系，呈三维瞬时成核。晶体的生长速率随着外加电位的负移而增大，可见外加电位对晶体的生长具有显著的作用。
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| 关 键 词： | 羟基磷灰石 电沉积 瞬时成核 连续成核 |
| 文章编号： | 1004-0536（2005）04-0001-03 |
| 收稿时间： | 2005-06-20 |
| 修稿时间： | 2005-06-202005-09-06 |
Nucleation Mechanism of HAP by Cathode Electrodeposition |
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| CHEN Ai-liang,ZHAO Zhong-wei,CHEN Xing-yu,JIA Xi-jun,CHEN Jin.Nucleation Mechanism of HAP by Cathode Electrodeposition[J].Rare Metals and Cemented Carbides,2005,33(4):1-3,12. |
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| Authors: | CHEN Ai-liang ZHAO Zhong-wei CHEN Xing-yu JIA Xi-jun CHEN Jin |
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| Affiliation: | 1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China; 2. School of Management and Engineering, China University of Mining and Technology, Beijing 100083, China |
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| Abstract: | The nucleation mechanism and kinetics of HAP by electrodeposition was studied through constant -potential experiments. The results showed that there were differenti-t transient curves at different potential. However,it was found that linear relationship existed between i-t^1/2 at different potential with three-dimensional instantaneous nucleation. Crystal is grown faster with the negative shift of the additional potential,indicating that additional potential plays a remarkable role in the crystal growth. |
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| Keywords: | hydroxyapatite electrodeposition instantaneous nucleation continuous nucleation |
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