高熵稀土萤石型氧化物陶瓷研究进展  

Research Progress of High-Entropy Rare Earth Fluorite-Type Oxide Ceramics

作　　者：昝文宇 马北越[1,2] ZAN Wen-yu;MA Bei-yue(Key Laboratory of Ecological Metallurgy of Multimetallic Mineral,Ministry of Education,Northeastern University,Shenyang 110819,China;School of Metallurgy,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学多金属共生矿生态化冶金教育部重点实验室,辽宁沈阳110819 [2]东北大学冶金学院,辽宁沈阳110819

出　　处：《稀有金属与硬质合金》2024年第1期24-30,43,共8页Rare Metals and Cemented Carbides

基　　金：国家自然科学基金项目(U21A2057)。

摘　　要：萤石型氧化物具有高熔点、低热导率、抗烧结等优异性能,是目前研究最为广泛且具有很高应用前景的高熵材料结构体系。烧绿石结构可以认为是一种有序缺陷萤石结构,因此本文将烧绿石结构归入萤石型系列。国内外高熵稀土萤石型氧化物结构体系可以分为四类:AO_(2)型、A_(2)B_(2)O_(7)型、A_(2)B_(2)O_(6)O′型、双相RE_(2)Zr_(2)O_(7)型,对各个结构体系的研究现状进行了综述,对高熵稀土萤石型氧化物的发展方向进行了展望。Fluorite-type oxides exhibit outstanding properties,including high melting point,low thermal conductivity,and sintering resistance,making them one of the most extensively researched and highly promising high-entropy material structural systems.As the pyrochlore structure can be considered as an ordered defective fluorite structure,the paper categorizes it into the fluorite-type series.And high-entropy rare earth fluorite-type oxide structural systems at home and abroad can be divided into four categories:AO_(2)-type,A_(2)B_(2)O_(7)-type,A_(2)B_(2)O_(6)O′-type,and biphasic RE_(2)Zr_(2)O_(7)-type.The current research status of each structural system is comprehensively reviewed,and a future development of high-entropy rare earth fluorite-type oxides is discussed.

关 键 词：高熵陶瓷 烧绿石结构 萤石结构 热障涂层 双相结构 

分 类 号：TQ174.1[化学工程—陶瓷工业]