| 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 | |
| Corresponding Author | Li, X. J.(lixiaoju@sdu.edu.cn) ; He, L. L.(llhe@imr.ac.cn) |
| 2019-02-25 | |
| Source Publication | SURFACE & COATINGS TECHNOLOGY
 |
| ISSN | 0257-8972 |
| Volume | 360Pages:20-28 |
| Abstract | 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. |
| Keyword | Graphite Carburization CVD diamond film TEM Iron and cobalt alloys |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:000458226700003 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131827 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, X. J.; He, L. L. |
| Affiliation | 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 |
| Recommended Citation 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. |
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