Catalytic graphite mechanism during CVD diamond film on iron and cobalt alloys in CH4-H-2 atmospheres

doi:10.1016/j.surfcoat.2018.12.120

IMR OpenIR

	Catalytic graphite mechanism during CVD diamond film on iron and cobalt alloys in CH4-H-2 atmospheres
	Li, X. J.1,2; He, L. L.3; Li, Y. S.4; Yang, Q.4
通讯作者	Li, X. J.(lixiaoju@sdu.edu.cn) ; He, L. L.(llhe@imr.ac.cn)
	2019-02-25
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	360 页码:20-28
摘要	Iron and cobalt alloys were exposed to a CH4-H-2 mixture at about 670 degrees C during the chemical vapor deposition (CVD) of diamond film. Severe carburization is observed on pure Fe and Co-10Al alloy, resulting voluminous graphite preferentially formed before diamond deposition. To clarify the catalytic graphite mechanism, microstructures and compositions around the substrates-graphite interfacial region have been comprehensively analyzed by transmission electron microscopy (TEM). Severe internal carburization on pure Fe leads to a metastable Fe3C carbide layer formed and then decomposed, finally resulting in the precipitation of graphite. Meanwhile, graphitization also occurs on low-Al alloy (Co-10Al), the graphite is precipitated from AICo(3)C carbide as substrate carburization occurs. As a comparison, such a graphite interlayer is inhibited when the substrate carburization is effectively hindered on high-Al alloys (Fe-25Al, Co-30Al), attributed to the protection of an alumina-rich layer on the alloy surface.
关键词	Graphite Carburization CVD diamond film TEM Iron and cobalt alloys
资助者	program of Department of Education of Jilin Province ; National Basic Research Program of China ; Canada Research Chairs Program ; Natural Sciences and Engineering Research Council of Canada (NSERC)
DOI	10.1016/j.surfcoat.2018.12.120
收录类别	SCI
语种	英语
资助项目	program of Department of Education of Jilin Province[2016331] ; National Basic Research Program of China[2011CB605803] ; National Basic Research Program of China[2011CB605604] ; Canada Research Chairs Program ; Natural Sciences and Engineering Research Council of Canada (NSERC)
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000458226700003
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：14[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/321006/131827
专题	中国科学院金属研究所
通讯作者	Li, X. J.; He, L. L.
作者单位	1.Shandong Univ, State Key Lab Microbial Technol, 72 Binhai Rd, Qingdao 26623Z, Peoples R China 2.Changchun Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Struct Mat, Minist Educ, Changchun 130012, Jilin, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 4.Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 5A9, Canada
推荐引用方式 GB/T 7714	Li, X. J.,He, L. L.,Li, Y. S.,et al. Catalytic graphite mechanism during CVD diamond film on iron and cobalt alloys in CH4-H-2 atmospheres[J]. SURFACE & COATINGS TECHNOLOGY,2019,360:20-28.
APA	Li, X. J.,He, L. L.,Li, Y. S.,&Yang, Q..(2019).Catalytic graphite mechanism during CVD diamond film on iron and cobalt alloys in CH4-H-2 atmospheres.SURFACE & COATINGS TECHNOLOGY,360,20-28.
MLA	Li, X. J.,et al."Catalytic graphite mechanism during CVD diamond film on iron and cobalt alloys in CH4-H-2 atmospheres".SURFACE & COATINGS TECHNOLOGY 360(2019):20-28.