| GONG Yun-Ian,YANG Yun,WANG Wei,GUO He-tong.Self-organized Process of the Anodic Alumina Films at the Different Temperatures[J],37(5):1-4 |
| Self-organized Process of the Anodic Alumina Films at the Different Temperatures |
| Received:June 27, 2008 Revised:October 10, 2008 |
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| DOI： |
| KeyWord:Anode oxidation Anodic alumina films Temperature Self-organized process Nanoporous |
| Author | Institution |
| GONG Yun-Ian |
Tianjin University of Commerce, Tianjin , China |
| YANG Yun |
Tianjin University of Commerce, Tianjin , China |
| WANG Wei |
School of Chemical Engineering of Tianjin University, Tianjin , China |
| GUO He-tong |
School of Chemical Engineering of Tianjin University, Tianjin , China |
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| Abstract: |
| The appearance of the anodic alumina films formed in H2S04,H2C204 and H3P04 solution at different temperatures was studied by ESEM. The effect of the temperature of the electrolytes on the self-organized process of anodic alumina film was researched by analyzing the relation of the anodic current density and oxidation time in H2S04, H2C204 and H3P04 solution at different temperatures. The results show that the surface tension in the nanoporous internal face are increased with the decrease in electrolysis temperature, the complete time of the self-organized process of the anodic alumina film can be shortened by lowering temperature. But the degree of temperature influence on the self-organized process of anodic alumina film is different in the different electrolytes. The higher the degree of the temperature influence on the stable current density, the greater change the reaction heat has, the more difference of the surface tension in the nanoporous face and, the more distinct the effect of the temperature on the self-organized process of anodic alumina film. The effect of the temperature on the self-organized process of anodic alumina film is consistent with it on the stable current density and on the nanoporous aperture. The effect of the temperature on the self-organized process of anodic alumina film is decided by the nanoporous aperture depend on temperature. The effect of the temperature on the self-organized process of anodic alumina film indifferent solutions is in following order: H2S04 > H2C204 > H3P04 |
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