Tunable strength of SiCf/beta-Yb2Si2O7 interface for different requirements in SiCf/SiC CMC: Inspiration from model composite investigation

doi:10.1016/j.jmst.2020.05.071

IMR OpenIR

	Tunable strength of SiCf/beta-Yb2Si2O7 interface for different requirements in SiCf/SiC CMC: Inspiration from model composite investigation
	Lv, Xirui 1,2; Yue, Mengkun 3,4; Yang, Wenfan 1,2; Feng, Xue 3,4; Li, Xiaoyan 3,4; Wang, Yumin 5; Wang, Jiemin 1; Zhang, Jie 1; Wang, Jingyang 1
通讯作者	Zhang, Jie(jiezhang@imr.ac.cn) ; Wang, Jingyang(jywang@imr.ac.cn)
	2021-03-20
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	67 页码:165-173
摘要	Model composites consisting of SiC fiber embedded in beta-Yb2Si2O7 matrix were processed by Spark Plasma Sintering method and the feasibility of tunable SiCf/Yb2Si2O7 interface in SiC-based CMCs were estimated. Weak and strengthened SiCf/Yb2Si2O7 interfaces were achieved by adjusting sintering temperatures. The indentation crack test and fiber push out experiments clearly demonstrated the different debonding mechanisms in the samples. Weak interfaces sintered at 1200 and 1250 degrees C exhibited crack deflection at interface in indentation test. Their low debond energy at the interface, which were comparable to those of PyC or BN, satisfied the well-recognized interfacial debond and crack deflection criteria for CMCs. The interface was strengthened by atomic bonding in model composite sintered at 1450 degrees C, leading to crack penetrating into SiC fiber and high debond energy. The strong interface may be promising in SiCf/SiC CMC to withstand higher combustion temperature, because Yb2Si2O7 will provide plastic deformation capacity, which would serve as weak interphase for crack deflection and energy dissipation. Therefore, it is possible to design the capability of SiCf/RE2/Si2O7 interface for different requirements by adjusting interfacial strength or debond energy to reach optimal mechanical fuse mechanism in SiCf/SiC CMC. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	SiCf/SiC composite Interphase Rare earth disilicate Tunable interface
资助者	National Key R&D Program of China ; Natural Science Foundation of China ; CAS International Cooperation Key Program
DOI	10.1016/j.jmst.2020.05.071
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFB0703201] ; Natural Science Foundation of China[51772302] ; CAS International Cooperation Key Program[174321KYSB20180008]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000611164200016
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/159160
专题	中国科学院金属研究所
通讯作者	Zhang, Jie; Wang, Jingyang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Tsinghua Univ, Dept Engn Mech, AML, Beijing 100084, Peoples R China 4.Tsinghua Univ, Ctr Mech & Mat, Beijing 100084, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Lv, Xirui,Yue, Mengkun,Yang, Wenfan,et al. Tunable strength of SiCf/beta-Yb2Si2O7 interface for different requirements in SiCf/SiC CMC: Inspiration from model composite investigation[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,67:165-173.
APA	Lv, Xirui.,Yue, Mengkun.,Yang, Wenfan.,Feng, Xue.,Li, Xiaoyan.,...&Wang, Jingyang.(2021).Tunable strength of SiCf/beta-Yb2Si2O7 interface for different requirements in SiCf/SiC CMC: Inspiration from model composite investigation.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,67,165-173.
MLA	Lv, Xirui,et al."Tunable strength of SiCf/beta-Yb2Si2O7 interface for different requirements in SiCf/SiC CMC: Inspiration from model composite investigation".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 67(2021):165-173.