Corrosion Resistance of an electrodeposited Zinc Coating Containing CeO2 Nanoparticles
来源期刊：材料保护2004年增刊第2期
论文作者：LUO Xin-yi HE Jian-ping WANG Xian-you CHEN Su-jing
关键词：nanoparticles; ceriumdioxide; zincelectrodeposition; corrosionresistance; preferred orientation;
摘 要：A Zinc coating containing CeO2 nanoparticles has been deposited by electrodeposition in a zinc plating bath.The content of CeO2 in the coating is 0.22 mass%. The results of weight loss experiments and electrochemistry tests show that corrosion resistance of the Zinc coating containing CeO2 nanoparticles is remarkably improved in contrast to the pure zinc coating in 0.5 M MgSO4 solution. The effects of CeO2 microparticles on the corrosion resistance of the zinc coating have been studied, the results show that CeO2 microparticles have no effect on the corrosion resistance of the zinc coating. SEM and XRD experiments suggest that the presence of CeO2 nanoparticles in the coating causes the modification of the surface morphology and preferential orientation of the crystal planes; therefore, the reason for the enhancement of corrosion resistance is mainly related to improvement of the structure of the coating.
LUO Xin-yi1，HE Jian-ping1，WANG Xian-you1，CHEN Su-jing1
(1.College of Materials Science & Technology, NUAA,29 Yudao Street, Nanjing 210016, P. R. China)
摘要:A Zinc coating containing CeO2 nanoparticles has been deposited by electrodeposition in a zinc plating bath.The content of CeO2 in the coating is 0.22 mass%. The results of weight loss experiments and electrochemistry tests show that corrosion resistance of the Zinc coating containing CeO2 nanoparticles is remarkably improved in contrast to the pure zinc coating in 0.5 M MgSO4 solution. The effects of CeO2 microparticles on the corrosion resistance of the zinc coating have been studied, the results show that CeO2 microparticles have no effect on the corrosion resistance of the zinc coating. SEM and XRD experiments suggest that the presence of CeO2 nanoparticles in the coating causes the modification of the surface morphology and preferential orientation of the crystal planes; therefore, the reason for the enhancement of corrosion resistance is mainly related to improvement of the structure of the coating.
关键词:nanoparticles; ceriumdioxide; zincelectrodeposition; corrosionresistance; preferred orientation;
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