Cathodic micro-arc electro-deposition of ZrO_2 coatings in an aqueous solution containing colloidal particles

查看全文 作　　者：[1]YANGXiaozhan;[2]GAOWei;等

机构地区：[1]BeijingKeyLaporatoryforCorrosion,ErosionandSurfaceTechnology,UniversityofScienceandTechnologyBeijing,Beijing100083,China;[2]SchoolofEngineering,TheUniversityofAuckland,NewZealand

出　　处：《Rare Metals》索引2002年第21卷第3期,共5页

基　　金：This work was financially supported by the National Natural Science Foundation of China (No.59971009) ;Beijing Key Laboratory for Corrosion, Erosion and Surface Technology. 摘　　要：By a novel technique-cathodic micro-arc electro-deposition(CMED),ZrO2 coatings were deposited on an FeCrAl alloy.Experimental results show that the necessary conditions for obtaining ZrO2 coatings are to apply a pulse peak voltage over a critical value and add moderate amounts of ZrO2 colloidal particles and Zr(NO3)4 in the equeous solution.The as-deposited coatings are porous because hydrogen,water,and other vapors are generated and released from the coatings to the solution during the spark reaction.The coatings contain monoclinic and tetragonal crystalline ZrO with certain degree of amorphous structure.The processing parameters and mechanism of CMED were discussed. 关键词：FeCrAi合金 ZrO2涂层阴极微小弧光电沉淀

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Cathodic micro-arc electro-deposition of ZrO_2 coatings in an aqueous solution containing colloidal particles

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