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Strain-induced ordered structure of titanium carbide during depositing diamond on Ti alloy substrate
Li, X. J.; He, L. L.; Li, Y. S.; Yang, Q.; Hirose, A.
2017
发表期刊MATERIALS CHARACTERIZATION
ISSN1044-5803
卷号123页码:227-232
摘要During the deposition of diamond films on Ti alloy substrates, titanium carbide is a common precipitated phase, preferentially formed at the interfacial region. However, in this case, the precipitation of an ordered structure of titanium carbide has not been reported. In our work, a long periodic ordered structure of TiC has been observed at the deposited diamond film/Ti alloy interface by high resolution transmission electron microscopy (HRTEM). The long periodic ordered structure is identified as 6H-type. The formation mechanism is revealed by comparative studies on the different structures of TiC precipitated under different diamond deposition conditions in terms of deposition time, atmosphere and temperature. A large number of carbon vacancies in the interfacial precipitated TiC phase are verified through electron energy loss spectroscopy (EELS) quantification analysis. However, an ordered arrangement of these carbon vacancies occurs only when the interfacial stress is large enough to induce the precipitation of 6H-type TiC. The supplementary analysis by X-ray diffraction (XRD) further confirms that additional diffraction peaks presented in the XRD patterns are corresponding to the precipitation of 6H-type TiC. (C) 2016 Elsevier Inc. All rights reserved.; During the deposition of diamond films on Ti alloy substrates, titanium carbide is a common precipitated phase, preferentially formed at the interfacial region. However, in this case, the precipitation of an ordered structure of titanium carbide has not been reported. In our work, a long periodic ordered structure of TiC has been observed at the deposited diamond film/Ti alloy interface by high resolution transmission electron microscopy (HRTEM). The long periodic ordered structure is identified as 6H-type. The formation mechanism is revealed by comparative studies on the different structures of TiC precipitated under different diamond deposition conditions in terms of deposition time, atmosphere and temperature. A large number of carbon vacancies in the interfacial precipitated TiC phase are verified through electron energy loss spectroscopy (EELS) quantification analysis. However, an ordered arrangement of these carbon vacancies occurs only when the interfacial stress is large enough to induce the precipitation of 6H-type TiC. The supplementary analysis by X-ray diffraction (XRD) further confirms that additional diffraction peaks presented in the XRD patterns are corresponding to the precipitation of 6H-type TiC. (C) 2016 Elsevier Inc. All rights reserved.
部门归属[li, x. j.] changchun univ technol, coll mat sci & engn, key lab adv struct mat, minist educ, changchun 130012, peoples r china ; [he, l. l.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [li, y. s. ; yang, q.] univ saskatchewan, dept mech engn, saskatoon, sk s7n 5a9, canada ; [li, y. s. ; hirose, a.] univ saskatchewan, plasma phys lab, saskatoon, sk s7n 5e2, canada
关键词Hrtem 6h-type Tic Carbon Vacancies Interfacial Stress Diamond Film Ti Alloy Substrate
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
资助者Department of Education of Jilin Province [2016331]; National Basic Research Program of China [2011CB605803, 2011CB605604]; Canada Research Chair Program; Natural Sciences and Engineering Research Council of Canada (NSERC)
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78376
专题中国科学院金属研究所
推荐引用方式
GB/T 7714
Li, X. J.,He, L. L.,Li, Y. S.,et al. Strain-induced ordered structure of titanium carbide during depositing diamond on Ti alloy substrate[J]. MATERIALS CHARACTERIZATION,2017,123:227-232.
APA Li, X. J.,He, L. L.,Li, Y. S.,Yang, Q.,&Hirose, A..(2017).Strain-induced ordered structure of titanium carbide during depositing diamond on Ti alloy substrate.MATERIALS CHARACTERIZATION,123,227-232.
MLA Li, X. J.,et al."Strain-induced ordered structure of titanium carbide during depositing diamond on Ti alloy substrate".MATERIALS CHARACTERIZATION 123(2017):227-232.
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