新型热障涂层陶瓷隔热层材料  

Novel Ceramic Materials for Thermal Barrier Coatings

作　　者：薛召露 郭洪波[1,2] 宫声凯 徐惠彬[1,2] XUE Zhaolu;GUO Hongbo;GONG Shengkai;XU Huibin(School of Materials Science and Engineering,Beihang University,Beijing 100191,China;Key Laboratory of High-Temperature Structure Materials and Coatings Technology(Ministry of Industry and Information Technology),Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学材料科学与工程学院,北京100191 [2]高温结构材料与涂层技术工业和信息化部重点实验室,北京100191

出　　处：《航空材料学报》2018年第2期10-20,共11页Journal of Aeronautical Materials

基　　金：国家自然基金(51590894;51425102;51231001)

摘　　要：热障涂层(thermal barrier coatings,TBCs)是先进燃气涡轮发动机核心热端部件高压涡轮叶片的关键技术,已经在航空发动机和地面燃气轮机上获得成功应用的热障涂层陶瓷隔热层材料为氧化钇部分稳定氧化锆(YSZ)。由于受高温稳定性、隔热性能等的局限,YSZ已不能满足下一代航空发动机的发展要求。本文介绍了近年来国内外在多元氧化物掺杂氧化锆、A_2B_2O_7型烧绿石或萤石化合物、磁铅石型六铝酸盐化合物、石榴石型化合物、钙钛矿结构化合物和其他新型氧化物陶瓷等先进超高温热障涂层陶瓷材料方面的研究进展,并展望了今后超高温热障涂层陶瓷材料所面临的挑战和发展动向。Thermal barrier coatings(TBCs)are the key technologies for hot-components in advanced gas turbine and land-based engines.Yttria stalized zirconia(YSZ)is now extensively used as ceramic topcoat in TBC system.However,YSZ cannot be used for next generation aircraft engines due to its limitation in high-temperature capabilities and thermal barrier performances.In this paper,recent research progress of several novel TBC ceramic candidates covering multiple oxide co-doped zirconia,A2B2O7-type compounds,magnetoplumbite compounds,garnet-type compounds,perovskites and other new oxides ceramics is overviewed.And the development tendencies and challenges of ultra-high temperature TBC materials for future applications are prospected.

关 键 词：热障涂层 陶瓷材料 超高温 航空发动机 

分 类 号：TG174.4[金属学及工艺—金属表面处理]