Effect of CeO2 on the Microstructure and Properties of Plasma-Sprayed Al2O3-ZrO2 Ceramic Coatings

被引：2
|
作者：
Yan-wei Wang
Xiao-long Wang
Xing-yu Wang
Yong Yang
Chen Zhang
Wen-wei Sun
Yu-duo Ma
Yu-hang Cui
Lei Wang
Yan-chun Dong
机构：
[1] Hebei University of Technology,Key Laboratory for New Type of Functional Materials in Hebei Province, School of Materials Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Mater
来源：
Journal of Materials Engineering and Performance | 2020年 / 29卷
关键词：
Al; O; -ZrO; coating; CeO; eutectic ceramic; plasma spraying;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Al2O3-ZrO2 eutectic ceramic composite coatings with and without CeO2 addition were prepared by atmospheric plasma spraying. The microstructure and properties of the plasma-sprayed Al2O3-ZrO2-CeO2 coating were investigated. The results show that the Al2O3-ZrO2-CeO2 coating contained t-ZrO2, α-Al2O3 and γ-Al2O3 phases. Amorphous phase was found in the Al2O3-ZrO2 and Al2O3-ZrO2-CeO2 coatings, which was determined by the characteristics of the plasma spraying process and the eutectic composition of the composite powder. Compared the Al2O3-ZrO2-CeO2 coating with the Al2O3-ZrO2 coating, it was found that the Al2O3-ZrO2 coating with 4 wt.% CeO2 had lower porosity, more uniform and denser microstructure. The addition of 4 wt.% CeO2 was beneficial to improving the hardness, toughness, bond strength and wear resistance of the Al2O3-ZrO2 coating.
引用
收藏
页码：6390 / 6401
页数：11
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