锌表面Mo(W)-S-Zn簇合物转化膜的XPS和AES研究  

XPS and AES Studies on Conversion Films of Mo(W) S Zn Cluster Compounds on Zinc

作　　者：李道华[1] 叶向荣[1] 周益明[1] 忻新泉[1] 

机构地区：[1]南京大学配位化学研究所配位化学国家重点实验室

出　　处：《材料保护》1999年第4期3-5,共3页Materials Protection

基　　金：国家自然科学基金;江苏省自然科学基金;南京大学现代分析中心

摘　　要：在锌表面获得了多种不同颜色且具有金属光泽的不溶性Ｍｏ（Ｗ）ＳＺｎ簇合物转化膜。所获膜层具有良好的耐蚀性能和装饰效果，加热处理后颜色将发生变化，加速腐蚀试验结果表明，金黄色膜耐蚀性最佳。ＦＴＩＲ、ＦＴＲａｍａｎ、ＸＰＳ和ＡＥＳ分析表明，该膜层厚度约为６０ｎｍ。钼在膜表面的价态为＋６价，而在膜内则以＋６、＋４价共存。从ＡＥＳ深度分布曲线可知，其组织为３２．５％Ｚｎ，１９．３％Ｍｏ，３９．４％Ｓ，８．５％Ｏ。膜为多分子层组成的复杂体系。Abstract Conversion films of Mo(W) S Zn cluster compounds with metallic luster of various colours have been obtained on zine surface. These films possessed both anticorrosion property and decorative function, their colours have been changed by heat treatmet. It was found from the results of accelerated corrosion tests that the golden film exhibited excellent anticorrosive performance. The XPS and AES results showed that the thickness of the golden film was about 60 nm, and Mo existed as +6 in the surface, while +6, +4 in the internal layer of the film. The elemental compositions were calculated on AES depth profile ceerves: 32.5%Zn, 19.3%Mo, 39.4%S, 8.5%O. The colours of the films are probably caused by statistical distribution of various layers and the films are complicate mult component and multilayer systems.

关 键 词：转化膜 簇合物 XPS AES 锌 电镀 镀层 

分 类 号：TQ153.15[化学工程—电化学工业]