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邓舜杰,蒋驰,刘天伟,帅茂兵,王鹏.阴极等离子体电沉积Pt颗粒弥散的Al2O3/YSZ复合涂层的性能研究[J].稀有金属材料与工程(英文),2018,47(12):3590~3596.[deng shun jie,jiang chi,liu tian wei,shuai mao bing and wang peng.Characteristics of Al2O3-Pt/YSZ-Pt double layer composite coatings prepared by cathode plasma electrolytic depositionShunjie Denga, Chi Jiangb, Tianwei Liub, Maobing Shuaia*, Peng Wangc[J].Rare Metal Materials and Engineering,2018,47(12):3590~3596.]
Characteristics of Al2O3-Pt/YSZ-Pt double layer composite coatings prepared by cathode plasma electrolytic depositionShunjie Denga, Chi Jiangb, Tianwei Liub, Maobing Shuaia*, Peng Wangc
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Received:August 22, 2017  Revised:December 18, 2017
DOI:
Key words: Cathode plasma electrolytic deposition  High-temperature oxidation resistance  Composite coating  Toughening effects.
Foundation item:国家自然科学基金项目(面上项目,重点项目,重大项目)
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deng shun jie,jiang chi,liu tian wei,shuai mao bing and wang peng  
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Abstract:
      In this study, Al2O3-Pt/YSZ-Pt double layer composite coatings were prepared by cathode plasma electrolytic deposition (CPED) on the high-temperature alloy with a NiCoCrAlY bond-coat. The composite coatings were consisted of a Al2O3-Pt film and a YSZ-Pt top-coat, and showed a good adhesion with the metallic bond-coat. It is demonstrated, from the cyclic oxidation test and mechanical properties test, that such coatings possess good oxidation and spallation resistances. These beneficial results can be attributed to the effects: such coatings can inhibit further oxidation of the bond-coat owing to the extremely low oxygen diffusion rate of Al2O3-Pt film; the mechanical properties of Al2O3-Pt/YSZ-Pt composite coating are improved by the toughening effects of Pt particles.