| 纯铝表面TiO2涂层的光阴极保护行为 |
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| 引用本文： | 潘应君,宫娜,张恒.纯铝表面TiO2涂层的光阴极保护行为[J].武汉科技大学学报(自然科学版),2007,30(1):17-19. |
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| 作者姓名： | 潘应君 宫娜 张恒 |
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| 作者单位： | 武汉科技大学材料与冶金学院,湖北,武汉,430081 |
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| 摘 要： | 采用溶胶-凝胶法(Sol-Gel)在纯Al表面制备TiO2涂层,研究了不同热处理温度下涂层电极电位随时间的变化规律,同时测定了纯Al表面TiO2涂层的极化曲线和孔蚀电位,并对纯Al表面TiO2涂层的结构进行了分析。研究结果表明,纯铝表面TiO2涂层具有明显的光阴极保护效应。在光照条件下,其电极电位最大下降值约270mV。涂层的极化曲线和孔蚀电位测定以及试样在自来水中的浸入实验,进一步证实了纯铝表面TiO2涂层的光阴极保护效应。X射线衍射结构分析表明,TiO2涂层为四方的锐钛型晶体结构。
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| 关 键 词： | TiO2涂层 光阴极保护 纯铝 |
| 文章编号： | 1672-3090(2007)01-0017-03 |
| 修稿时间： | 2006-09-14 |
Photo-catelectrode protection of TiO2 coating on pure aluminium |
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| Pan Yingjun,Gong Na,Zhang Heng.Photo-catelectrode protection of TiO2 coating on pure aluminium[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),2007,30(1):17-19. |
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| Authors: | Pan Yingjun Gong Na Zhang Heng |
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| Institution: | College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | TiO2 coating was prepared on pure aluminium surface by sol-gel technique.The potential variation of TiO2 coating with different temperature treatment was investigated,the polarization curve and pinhole corrosion potential were determined,and the crystalline structure of TiO2 coating was analyzed.The results show that TiO2 coating on pure aluminium was provided with obvious photo-catelectrode protection with the maximum potential descent at about 270mV.The photo-catelectrode protection was further confirmed by the polarization curve and pinhole corrosion potential of TiO2 coating.It is also found that TiO2 coating is tetragonal crystal in structure. |
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| Keywords: | TiO2 coating photo-catelectrode protection pure aluminium |
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