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Theoretical and experimental determination of the major thermo-mechanical properties of RE2SiO5 (RE = Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y) for environmental and thermal barrier coating applications
Tian, Zhilin; Zheng, Liya; Wang, Jiemin; Wan, Peng; Li, Jialin; Wang, Jingyang; jywang@imr.ac.cn
2016
发表期刊JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
卷号36期号:1页码:189-202
摘要X2-RE2SiO5 orthosilicates are promising candidate environmental/thermal barrier coating (ETBC) materials for silicon-based ceramics because of their excellent durability in high-temperature environments and potential low thermal conductivities. We herein present the mechanical and thermal properties of X2-RE2SiO5 orthosilicates based on theoretical explorations of their elastic stiffness and thermal conductivity, and experimental evaluations of the macroscopic performances of dense specimens from room to high temperatures. Mechanical and thermal properties may be grouped into two: those that are sensitive to the rare-earth (RE) species, including flexural strength, elastic modulus, and thermal shock resistance, and those that are less sensitive to the RE species, including thermal conductivity, thermal expansion coefficient, and brittle-to-ductile transition temperature (BDTT). The orthosilicates show excellent elastic stiffness at high temperatures, high BDTTs, very low experimental thermal conductivities, and compatible thermal expansion coefficients. The reported information provides important material selection and optimization guidelines for X2-RE2SiO5 as ETBC candidates. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属[tian, zhilin ; zheng, liya ; wang, jiemin ; wan, peng ; li, jialin ; wang, jingyang] chinese acad sci, inst met res, shenyang natl lab mat sci, high performance ceram div, shenyang 110016, peoples r china ; [tian, zhilin ; zheng, liya ; wan, peng] univ chinese acad sci, beijing 100049, peoples r china
关键词Rare-earth Silicates Environmental Barrier Coating Mechanical Property Thermal Property
资助者Natural Science Foundation of China [51032006, 51372252]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75210
专题中国科学院金属研究所
通讯作者jywang@imr.ac.cn
推荐引用方式
GB/T 7714
Tian, Zhilin,Zheng, Liya,Wang, Jiemin,et al. Theoretical and experimental determination of the major thermo-mechanical properties of RE2SiO5 (RE = Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y) for environmental and thermal barrier coating applications[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2016,36(1):189-202.
APA Tian, Zhilin.,Zheng, Liya.,Wang, Jiemin.,Wan, Peng.,Li, Jialin.,...&jywang@imr.ac.cn.(2016).Theoretical and experimental determination of the major thermo-mechanical properties of RE2SiO5 (RE = Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y) for environmental and thermal barrier coating applications.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,36(1),189-202.
MLA Tian, Zhilin,et al."Theoretical and experimental determination of the major thermo-mechanical properties of RE2SiO5 (RE = Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y) for environmental and thermal barrier coating applications".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 36.1(2016):189-202.
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