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, Yang Guang[1]; Liu, Wei[1]; Wang, Weize[1]; Zhang, Wenkang[1]; Yang, Ting[1]; Li, Kai Bin[1]; Tang, Zhongxiang[1]; Liu, Chen[1]; Zhang, Chengcheng[2]

机构：[1] Key Laboratory of Pressure System and Safety, Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; [2] Aecc Commercial Aircraft Engine Co. Ltd., Shanghai, 200241, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230324972)

语种：英文

外文关键词：Alumina - Aluminum oxide - Contact angle - Corrosion resistant coatings - Corrosive effects - Magnesium compounds - Plasma spraying - Rare earths - Silicates - Thermal barrier coatings - Ytterbium compounds - Zirconia

摘要：Five kinds 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) are designed to investigate the corrosion behavior under CMAS attack. Results show that the corrosion resistance of YbYSZ increases with the increase of Yb2O3 content, which contributes to the excellent phase stability and lower diffusion of Yb3+. More degradation with microstructural destruction was observed in YSZ pellets and less in YbYSZ with 4 mol.% Yb2O3 (YbYSZ-4). Meanwhile, YbYSZ4 performs a larger contact angle than others, promoting CMAS resistance. ? 2023, The Authors. All rights reserved.