Accelerating the design of multicomponent rare earth silicates for SiC_(f)/SiC CMC by combinatorial material chip design and high throughput screening  

作　　者：Xirui Lv Yiming Lei Zhao Zhang Jie Zhang Jingyang Wang 

机构地区：[1]Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China [2]School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China

出　　处：《Journal of Materials Science & Technology》2023年第19期96-103,共8页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foun-dation of China under Grant Nos.U21A2063,52002376;National Key R&D Program of China under Grant No.2021YFB3702300;Key Research Program of the Chinese Academy of Sciences under Grant No.ZDRW-CN-2021-2-2;LiaoNing Revitalization Talents Pro-gram under Grant No.XLYC2002018,Natural Science Foundation of Liaoning Province under Grant No.2020-MS-006.

摘　　要：High throughput experimentation is employed to establish a ternary system with the compositional range of 30.8 mol.%-75.7 mol.%SiO_(2),16.6 mol.%-61.7 mol.%Yb_(2)O_(3),and 6.3 mol.%-4.1 moll.%Ho_(2)O_(3) through co-sputtering deposition on one combinatorial material chip.Considering their application in advanced SiC_(f)/SiC CMC,the phase composition and mechanical properties of samples with various RE/Si ratios and Yb/Ho ratios are comprehensively investigated.Chemical stability and thermal expansion compatibility between SiC and RE silicates with different compositions are also validated.Optimized materials for the application of environmental barrier coating and interphase for SiC_(f)/SiC CMC are screened respectively according to the above trends and data.This work is a case study to establish a composition-property library for RE_(2)O_(3)-SiO_(2) compounds.It is inspired more complicated multicomponent RE silicates could be prepared and characterized by high throughput experimentation,accelerating the design and screening of promising optimal candidates.

关 键 词：High throughput experimentation RE silicates Phase stability Mechanical properties 

分 类 号：V250[一般工业技术—材料科学与工程] V263[航空宇航科学与技术—航空宇航制造工程] TB332