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TEM study on the morphology and interface microstructure of C/C-SiC composites fabricated by liquid infiltration
Zhang, K. X.1,3; Guo, X. S.2; Cheng, Y. X.3; Zhang, F. Q.4; He, L. L.3
Corresponding AuthorHe, L. L.(llhe@imr.ac.cn)
2021-05-01
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume175Pages:7
AbstractCarbon fiber reinforced carbon and silicon carbide dual matrix composites (C/C-SiC) have been widely used in aerospace field thanks to their superior high temperature properties. However, the interfacial microstructure of the composites is still not thoroughly understood in details. In this study, we focus on the morphology of the reaction-formed SiC and the interfacial microstructure between carbon and SiC in the C/C-SiC composites fabricated by liquid silicon infiltration performed at 1700 ?C. The fine microstructure of the composites was investigated systematically by using transmission electron microscopy. The results show that two main types of interface are formed in the composites: (i) the fine-grained SiC is formed adjacent to the pyrolytic carbon, followed by a layer of coarse-grained SiC; and (ii) some extremely large SiC grains are formed directly on the pyrolytic carbon, and different pyrolytic carbon coatings can be connected by these large SiC grains. Additionally, some subgrains with grain size of a few tens of nanometers or even smaller can be found near the pyrolytic carbon or carbon fibers. The formation mechanism of the SiC/carbon interface is also discussed based on the fine microstructure observed.
KeywordComposites C C-SiC Liquid silicon infiltration TEM Morphology Interfacial microstructure
Funding OrganizationNational Basic Research Program of China (973 Program) ; Guangxi Base and Talent Project ; State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, China ; Science and Technology Major Project (New Materials) of Yunnan, China ; Natural Science Foundation of Yunnan, China ; Youth Promotion Project
DOI10.1016/j.matchar.2021.111055
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Program of China (973 Program)[2011CB605803] ; Guangxi Base and Talent Project[AD19110108] ; State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, China[SKL-SPM-201805] ; Science and Technology Major Project (New Materials) of Yunnan, China[2018ZE001] ; Science and Technology Major Project (New Materials) of Yunnan, China[2019ZE001] ; Natural Science Foundation of Yunnan, China[2019FA048] ; Youth Promotion Project[2019KY0251]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS IDWOS:000648436100006
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161506
Collection中国科学院金属研究所
Corresponding AuthorHe, L. L.
Affiliation1.Guilin Univ Elect Technol, Guangxi Collaborat Innovat Ctr Struct & Property, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China
2.Pingxiang Univ, Engn & Technol Res Ctr Environm Protect Mat & Equ, Pingxiang 337055, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
4.Cent South Univ, Sci & Technol High Strength Struct Mat Lab, Changsha 410083, Peoples R China
Recommended Citation
GB/T 7714
Zhang, K. X.,Guo, X. S.,Cheng, Y. X.,et al. TEM study on the morphology and interface microstructure of C/C-SiC composites fabricated by liquid infiltration[J]. MATERIALS CHARACTERIZATION,2021,175:7.
APA Zhang, K. X.,Guo, X. S.,Cheng, Y. X.,Zhang, F. Q.,&He, L. L..(2021).TEM study on the morphology and interface microstructure of C/C-SiC composites fabricated by liquid infiltration.MATERIALS CHARACTERIZATION,175,7.
MLA Zhang, K. X.,et al."TEM study on the morphology and interface microstructure of C/C-SiC composites fabricated by liquid infiltration".MATERIALS CHARACTERIZATION 175(2021):7.
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