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TEM study on the microstructure of the interface at the scale of nanometer formed between Cu-8 wt.% Ti melt and C/C preform
Zhang, K. X.1,2; Guo, X. S.3; Zhao, W. K.4; Zhang, F. Q.4; He, L. L.2
Corresponding AuthorHe, L. L.(llhe@imr.ac.cn)
2020-05-01
Source PublicationMATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
Volume246Pages:8
AbstractCarbon/copper composites have been widely used in a variety of fields, for example electrical contact devices by taking advantages of both carbon and Cu simultaneously. However, the interfacial reaction and microstructure of these composites are not well known yet in the nanometer scale, especially involving the interaction between active alloy melt and carbon, which remains an important question in composites technology. In this study, we employ transmission electron microscopy (TEM) to investigate the interfacial microstructures, which are formed in the course of infiltration of carbon/carbon (C/C) composites preform by molten Cu-8 wt.% Ti at 1373 K. The results show that in the short-cut fiber web zone, there are two types of interfaces: (i) the mixture of fine-grained (FG) TiC and nano-sized Cu particles and (ii) a "Cu layer" with a thickness of no more than 500 nm at the pyrolytic carbon (PyC)/coarse-grained (CG) TiC interface. The main bonding mechanisms for the two interfaces are the formation of PyC/TiC and PyC/Cu2O interfaces, and the PyC/Cu2O interface, respectively. In the non-woven cloth zone, only Cu2O layer is found between Cu and PyC without any TiC layer due to the depletion of Ti.
KeywordMetal matrix composites C/C preform Reactive melt infiltration Interfacial microstructure
Funding OrganizationNational Basic Research Program of China (973 Program)
DOI10.1016/j.matchemphys.2020.122795
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Program of China (973 Program)[2011CB605803]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000525781100045
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138272
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.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Pingxiang Univ, Engn & Technol Res Ctr Environm Protect Mat & Equ, Pingxiang 337055, 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.,Zhao, W. K.,et al. TEM study on the microstructure of the interface at the scale of nanometer formed between Cu-8 wt.% Ti melt and C/C preform[J]. MATERIALS CHEMISTRY AND PHYSICS,2020,246:8.
APA Zhang, K. X.,Guo, X. S.,Zhao, W. K.,Zhang, F. Q.,&He, L. L..(2020).TEM study on the microstructure of the interface at the scale of nanometer formed between Cu-8 wt.% Ti melt and C/C preform.MATERIALS CHEMISTRY AND PHYSICS,246,8.
MLA Zhang, K. X.,et al."TEM study on the microstructure of the interface at the scale of nanometer formed between Cu-8 wt.% Ti melt and C/C preform".MATERIALS CHEMISTRY AND PHYSICS 246(2020):8.
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