XPS Analysis of the Cerium Conversion Coating on the Anodized A16061/SiC_p

Xingwen YU, Chuanwei YAN, Chunan CAO and Guoqiang LI1) Department of Interface Chemistry and Surface Technologies, Max-Planck-Institut for Iron Research, Max-Planck-Str. 1, 40237 Duesseldorf, Germany2) State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China3) Department of Corrosion, Beijing University of Science and Technology, Beijing 100083, Beijing

摘 要：<正> A method of concentration analysis based on X-ray photoelectron spectroscopy （XPS） results was introduced. The concentration of Ce-rich conversion coating on the anodized Al based metal matrix composites AI6061/SiCp was then studied according to this method. The results revealed that the Ce conversion coating on the anodized AI6061/SiCp consisted of Al oxide, Ce oxide and Ce hydroxide. The state of Ce element exhibited the mixture of Ce3+ and Ce4+. Some of Cell I was oxidized to be CelV in the outer layer coating.

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