| 稀土铈在铝合金氧化膜中沉积机制的研究 |
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| 引用本文： | 李凌杰,李荻,张胜涛.稀土铈在铝合金氧化膜中沉积机制的研究[J].材料工程,2001,1(3):23-24,27. |
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| 作者姓名： | 李凌杰 李荻 张胜涛 |
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| 作者单位： | 1. 北京航空航天大学，北京 100083
2. 重庆大学，重庆 400044 |
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| 基金项目： | 国家自然科学基金资助项目!(5 97710 6 7)，航空基础科学基金资助项目!(97H5 10 77) |
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| 摘 要： | 铝合金在硫酸溶液中进行了阳极氧化，然后在含盐的溶液中进行恒电流阴极极化，应用椭圆偏振技术对上述两过程进行了现场追踪的结果表是有，通过阴极化步骤，可使氧化膜的组成发生改变，使铈沉积在氧化膜的表面，改变阴极极化液的酸度，对氧化膜中铈的沉积量有所影响，酸度越大，沉积上去的铈会越少。
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| 关 键 词： | 椭圆偏振技术 铈 铝合金 氧化膜 阴极极化 稀土转化膜 成膜工艺 表面处理 电化学沉积 |
| 文章编号： | 1001-4381(2001)03-0023-02 |
The Deposition Mechanism of Cerium on Oxide Coatings of Aluminum Alloy |
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| LI Ling jie,LI Di.The Deposition Mechanism of Cerium on Oxide Coatings of Aluminum Alloy[J].Journal of Materials Engineering,2001,1(3):23-24,27. |
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| Authors: | LI Ling jie LI Di |
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| Abstract: | The process of anodic oxidation of aluminum alloy in sulfuric acid solution as well as that of cathodic polarization of anodic oxide coatings in solution containing cerium salt were studied using in situ ellipsometry The results show that the composition of the oxide film is affected by cathodic polarization and cerium could deposit on the film surfaces The deposition of cerium is sensitive to the solution pH, the lower the pH, the less cerium deposited |
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| Keywords: | ellipsometry cerium aluminum alloy oxide coating cathodic polarization |
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