Investigations of diamond layers growth on steel

A hot-filament-assisted chemical vapour deposition system has been used in an attempt to grow diamond layers on steel substrates. Deposition of diamond layers was performed in hydrogen- methane gas mixture. To overcome the common problems associated with the nucleation and growth of diamond on steel...

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Bibliographic Details
Published in:Journal of Optoelectronics and Advanced Materials 2000-01, Vol.2 (5), p.698-703
Main Authors: Negrea, G, Vermesan, G
Format: Article
Language:English
Online Access:Get full text
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Summary:A hot-filament-assisted chemical vapour deposition system has been used in an attempt to grow diamond layers on steel substrates. Deposition of diamond layers was performed in hydrogen- methane gas mixture. To overcome the common problems associated with the nucleation and growth of diamond on steel, the A2 substrates were first coated with thin chromium nitride buffer layers. The results obtained in this study show that chromium nitride layer can provide a viable solution for deposition of continues and adherent diamond layers on steel. The study indicates that thicker CrN layers can accommodate more easily the residual stresses which develop upon cooling. It was also found that diamond layers containing small amounts of non-diamond phase, grown at lower substrate temperature are less prone to cracking and delamination.
ISSN:1454-4164