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Two-step growth of ...
Two-step growth of high-quality nano-diamond films using CH 4/H 2 gas mixture
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- Askari, SJ (author)
- Department of High Tech Thin Films, School of Materials Science and Engineering, University of Science and Technology Beijing
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- Akhtar, Farid (author)
- Department of High Tech Thin Films, School of Materials Science and Engineering, University of Science and Technology Beijing
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- Islam, S.H. (author)
- Department of High Tech Thin Films, School of Materials Science and Engineering, University of Science and Technology Beijing
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- Qi, H (author)
- Department of High Tech Thin Films, School of Materials Science and Engineering, University of Science and Technology Beijing
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- Tang, WZ (author)
- Department of High Tech Thin Films, School of Materials Science and Engineering, University of Science and Technology Beijing
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- Lu, FX (author)
- Department of High Tech Thin Films, School of Materials Science and Engineering, University of Science and Technology Beijing
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(creator_code:org_t)
- Elsevier BV, 2007
- 2007
- English.
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In: Vacuum. - : Elsevier BV. - 0042-207X .- 1879-2715. ; 81:5, s. 713-717
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Diamond films with fine grain size and good quality were successfully deposited on pure titanium substrate using a novel two-step growth technique in microwave plasma-assisted chemical vapor deposition (MWPCVD) system. The films were grown with varying the methane (CH4) concentration at the stage of bias-enhanced nucleation (BEN) and nano-diamond film deposition. It was found that nano-diamond nuclei were formed at a relatively high methane concentration, causing a secondary nucleation at the accompanying growth step. Nano-diamond film deposition on pure titanium was always very hard due to the high diffusion coefficient of carbon in Ti, the big difference between thermal expansion coefficients of diamond and Ti, the complex nature of the interlayer created during diamond deposition, and the difficulty in achieving very high nucleation density. A smooth and well-adhered nano-diamond film was successfully obtained on pure Ti substrate. Detailed experimental results on the synthesis, characterization and successful deposition of the nano-diamond film on pure Ti are discussed
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Keyword
- Engineering Materials
- Materialteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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