Mallik, Awadesh Kumar and Shivashankar, S A and Biswas, S K (2009) High vacuum tribology of polycrystalline diamond coatings. Sadhana-Academy Proceedings in Engineering Sciences, 34 (5). pp. 811-821. ISSN 0256-2499

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Abstract

Polycrystalline diamond coatings have been grown on unpolished side of Si(100) wafers by hot filament chemical vapour deposition process. The morphology of the grown coatings has been varied from cauliflower morphology to faceted morphology by manipulation of the growth temperature from 700 degrees C to 900 degrees C and methane gas concentration from 3% to 1.5%. It is found that the coefficient of friction of the coatings under high vacuum of 133.32 x 10(-7) Pa (10(-7) torr) with nanocrystalline grains can be manipulated to 0.35 to enhance tribological behaviour of bare Si substrates.

Item Type:	Article
Uncontrolled Keywords:	Polycrystalline diamond coatings; Hot filament CVD; High vacuum tribology
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	27 Feb 2012 11:42
Last Modified:	27 Feb 2012 11:42
URI:	http://cgcri.csircentral.net/id/eprint/1034

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