信阳师范大学学报（自然科学版）2025，Vol.38Issue(4)：470-475,6.DOI:10.3969/j.issn.2097-583X.2025.04.014
Gd2Zr2O7热障涂层材料性能研究及抗CMAS行为
Properties and CMAS resistance of Gd2Zr2O7 thermal barrier coating
摘要
Abstract
Gd2Zr2O7 was synthesized by high-temperature solid-phase synthesis using zirconia(ZrO2)and Gadolinium(Ⅲ)oxide(Gd2O3)as raw materials.The crystal structure,thermal expansion coefficient,microstructure,mechanical properties and sintering resistance of Gd2Zr2O7 were systematically studied by XRD,thermal dilatometer,SEM and Vickers hardness tester.The results showed that Gd2Zr2O7 exhibited a high coefficient of thermal expansion(TEC)and good sintering resistance,but its mechanical properties were poor.After 4 h of hot corrosion,the corrosion depth reached 41.56 μm;After 12 h of hot corrosion,the corrosion depth reached 132.30 μm.At high temperature,Gd2Zr2O7 reacted with molten CMAS to form a dense layer of Ca2Gd8(SiO4)6O2,which hindering the further penetration of CMAS.关键词
热障涂层/力学性能/抗烧结性能/CMAS腐蚀Key words
thermal barrier coating(TBC)/mechanical properties/sintering resistance/CMAS corrosion分类
化学化工引用本文复制引用
王进双,徐一妍,卢贤军,龚文杰,王迎辉..Gd2Zr2O7热障涂层材料性能研究及抗CMAS行为[J].信阳师范大学学报（自然科学版）,2025,38(4):470-475,6.基金项目
国家自然科学基金项目(51902279) （51902279）
信阳师范大学"南湖学者奖励计划"青年项目 （）
