文献类型：期刊文献

英文题名：Improvement on corrosion resistance of molten calcium-magnesium-alumina-silicate (CMAS) by Yb2O3-Y2O3 co-stabilized ZrO2 ceramic pellets

作者：Liu, Yangguang[1];Liu, Wei[1];Wang, Weize[1];Zhang, Wenkang[1];Yang, Ting[1];Li, Kaibin[1];Tang, Zhongxiang[1];Liu, Chen[1];Zhang, Chengcheng[2]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China;[2]Aecc Commercial Aircraft Engine Co Ltd, Shanghai 200241, Peoples R China

年份：2024

卷号：227

外文期刊名：CORROSION SCIENCE

收录：;EI(收录号：20240115310843);WOS:【SCI-EXPANDED(收录号:WOS:001164830300001)】；

基金：This research was sponsored by the National Natural Science Foundation of China (52175136, 52130511) , Science Center for Gas Turbine Project (P2021-A-IV-002), Shanghai Joint Innovation Program in the Field of Commercial Aviation Engines, National High Technology Research and Development Program of China (2021YFB3702202) , and Key Research and Development Projects in Anhui Province (2022a05020004) .

语种：英文

外文关键词：Thermal barrier coatings (TBCs); Calcium-magnesium-alumina-silicate (CMAS); Corrosion resistance; Rare earth doping; Contact angle

摘要：Five types of ceramic pellets with different doping contents of Yb2O3-Y2O3 co-stabilized ZrO2 (YbYSZ) (x mol.% Yb2O3 -(4.5-x) mol.% Y2O3-ZrO2; X = 0 (YSZ), 1, 2, 3, 4) were designed to investigate corrosion behavior under CMAS attack. The results show that the corrosion resistance of YbYSZ increased with increasing Yb2O3 content, which was attributed to the excellent phase stability and lower diffusion of Yb3+. More degradation with microstructural destruction was observed in the YSZ pellets, and less degradation was observed in YbYSZ with 4 mol.% Yb2O3 (YbYSZ-4). Further, YbYSZ-4 performs a larger contact angle than others, promoting CMAS resistance.