Effect of Benzotriazole on Corrosion Resistance of Al2O3/Cerium Oxide Composite Films on the Al Surface

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY 稀有金属材料与工程 Pub Date : 2018-12-01 DOI:10.1016/S1875-5372(19)30004-9

Wang Guixiang, Gao Gang, Han Xinchen, Ying Lixia, Ma Fuqiu

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引用次数: 1

Abstract

Al₂O₃/cerium oxide composite films were prepared on the surface of aluminum by an anodic oxidation and chemical conversion method. The aluminum was firstly anodized in sulfuric acid, and then the anodized aluminum was treated with the Ce(NO₃)₃ solution. The effect of different concentrations of 1H-Benzotriazole (BTA) on the corrosion resistance of Al₂O₃/cerium oxide composite films was investigated. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) with energy dispersive spectrometer (EDS), and electrochemical workstation were used to characterize the properties of the composite films. The results show that the deposition effect of cerium ions is optimal in 0.5 g/L BTA. At the same time, the surface uniformity and smoothness of the composite films are both enhanced. And the corrosion resistance of the composite film is strengthened.

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苯并三唑对铝表面Al2O3/氧化铈复合膜耐蚀性的影响

采用阳极氧化和化学转化的方法在铝表面制备了Al2O3/氧化铈复合膜。首先在硫酸中对铝进行阳极氧化，然后用Ce(NO3)3溶液对阳极氧化铝进行处理。研究了不同浓度的h -苯并三唑(BTA)对氧化铝/氧化铈复合膜耐腐蚀性能的影响。利用x射线衍射(XRD)、x射线光电子能谱(XPS)、扫描电子显微镜(SEM)和能谱仪(EDS)以及电化学工作站对复合膜的性能进行了表征。结果表明，在0.5 g/L BTA中，铈离子的沉积效果最佳。同时，复合膜的表面均匀性和光滑度都得到了提高。同时增强了复合膜的耐腐蚀性能。

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