A1 Journal article (refereed), original research

Stress and adhesion in DLC coatings on 316L stainless steel deposited by a neutral beam source


Publication Details
Authors: Morshed M M, Cameron David, McNamara B P, Hashmi MS
Publication year: 2003
Language: English
Related Journal or Series Information: Journal of Materials Processing Technology
Volume number: 141
Issue number: 1
ISSN: 0924-0136
JUFO-Level of this publication:
Open Access: Not an Open Access publication

Abstract
Diamond-like carbon (DLC) films have been deposited on medical implant grade 316L stainless steel substrates using a saddle field sourceneutral beam deposition system. The deposition characteristics have been determined as a function of system parameters and it has beenshown that the deposition rate is largely independent of chamber pressure. The film structure has been investigated using Raman spectroscopyand from the peak positions and intensities the sp3 content has been estimated to be20% maximum. No significant change with film pressurehas been observed but higher anode currents may lead to higher sp3 content. The adhesion strength has been found to be inversely proportionalto the residual stress and to increase at lower deposition pressures. At a source anode current of 0.6 A the adhesion is a monotonic function ofpressure in the range examined whereas with 1.0 A source current the behaviour is more complex.

Research Areas

Last updated on 2017-22-03 at 15:19