在脉冲电场下对铝阳极氧化膜表面进行了铈盐封闭. 结果表明, 脉冲封闭2 h后, 孔洞基本封上, 说明此工艺具有较好的封闭效果. 对封闭后的阳极氧化膜表面进行XPS元素分析发现, 铈元素在表面存在形式为三价或四价的氧化物和氢氧化物.
The morphology and composition of the anodic film of aluminum, which was sealed in cerium salt solution by pulse power, have been characterized by SEM and XPS. The results showed that after 2 h treatment, the anodic film was completely sealed and consisted of mixture of trivalence and quadrivalence Ce oxide and Ce hydroxide.