一种抗高温腐蚀热障涂层的设计与功能实现  

Design and Function Realization Mechanism of One Kind Thermal Barrier Coating Resisted to CMAS Corrosion

作　　者：李广 徐朱力 张家霖 刘聪 袁群博 王珂 Li Guang;Xu Zhuli;Zhang Jialin;Liu Cong;Yuan Qunbo;Wang Ke(Shanghai Institute of Space Power-sources,Shanghai 200245)

机构地区：[1]上海空间电源研究所,上海200245

出　　处：《航天制造技术》2024年第5期57-64,共8页Aerospace Manufacturing Technology

摘　　要：热障涂层(TBC)技术是航空发动机的关键核心技术之一,其中YSZ(Y2O3部分稳定的ZrO_(2))TBC应用最广泛,近年来环境沉积物(CMAS,CaO-MgO-Al_(2)O_(3)-SiO_(2))腐蚀成为其失效的重要原因。本文以一种极具应用前景的热防护涂层材料Ti_(2)AlC为研究对象,系统地研究了Ti_(2)AlC/YSZ热障涂层的制备工艺、抗CMAS腐蚀性能,考察了热防护层的退化机理,为新型热防护涂层材料Ti_(2)AlC的高温应用提供理论支撑。Thermal barrier coating(TBC)is one of the key core technologies of the aeroengine,among which YSZ(Y_(2)O_(3) partially stabilized ZrO2)TBC is the most widely used.In recent years,the corrosion of environmental deposits(CMAS,CaO-MgO-Al_(2)O_(3)-SiO2)has become an important reason for YSZ failure.This paper takes Ti_(2)AlC,a promising thermal-protective coating material,as the object of study,systematically explored the preparation technology,CMAS corrosion resistance of Ti_(2)AlC/YSZ TBC,and investigated the degradation mechanism of the thermal-protective coating.The results could provide theoretical support for the high temperature application of the Ti_(2)AlC thermal-protective coating.

关 键 词：热防护涂层 高温腐蚀 Ti_(2)AlC/YSZ热障涂层 抗腐蚀机理 

分 类 号：V25[一般工业技术—材料科学与工程]