铝合金在硫酸溶液中进行阳极氧化，然后再在含铈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现场追踪的结果表明：通过阴极极化步骤，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。
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 r esults show that the composition of the oxide film is affected by cathodic pola rization and cerium could deposit on the film surfaces. The deposition of ceri u m is sensitive to the solution pH, the lower the pH, the less cerium deposited .
参考文献
| [1] | M J Henderson.Chromate-Free Conversion Coatings Processes[C].Asia Pacific Interfinish'86-Proceedings, Australia,1994 |
| [2] | J D Gorman.Characterization of the Stainless Aluminum Proces s[C].Asia Pacific Interfinish'86- Proceedings, Australia,1994 |
| [3] | 杨哲龙.稀土添加剂对LY12铝合金硬质氧化膜性能的影响[J].材料工程,1998(07):6. |
| [4] | Li Di;Deng Yue Peng;Guo Bao Lan.Investigation of cerium salt/sulfuri c acid anodizing technology 1420 aluminum alloy[J].Materials Science Forum,2000(331-337):1695-1698. |
| [5] | 彭明霞,李荻,李国强,郭宝兰.稀土铈在铝合金阳极氧化膜中电化学沉积的研究[C].腐蚀科学与防腐蚀工程技术新进展（中国腐蚀与防护学会成立20周年暨'99学术年会：论文专辑）,1999:98-101. |
| [6] | A·J·Bard;L R Faulkner;谷林瑛.电化学方法-原理及应用 .第一版[M].北京:化学工业出版社,1986:670. |
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