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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Adhesion and composite micro-hardness of DLC and Si-DLC films deposited on nitrile rubber
Surface and Coatings Technology, Volume 206, No. 23, Year 2012
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Description
Thin films of hydrogenated diamond-like carbon (DLC) and silicon (Si) doped diamond-like carbon (Si-DLC) have been deposited on acrylonitrile butadiene rubber (NBR) using a closed field unbalanced magnetron sputtering ion plating system. A sputter cleaning process was integrated into the deposition process so as to reduce the likelihood of re-contamination between the cleaning and deposition stages. The deposited coatings showed excellent adherence with an adhesion rating of 4. A for films with a Si-C interlayer. The composite micro-hardness was highest for DLC films at 15.5. GPa for indentation load of 147.1. mN using a Vickers micro-hardness tester. Tribological tests undertaken under normal load of 5. N using a pin-on-disc tribometer for all of the samples of DLC and Si-DLC films, with and without Si-C interlayer, show a friction increase between 0.25 and 0.4 to between 0.45 and 0.6. This friction increase has been related to the micro-hardness of the films. © 2012 Elsevier B.V.
Authors & Co-Authors
Lubwama, Michael
Ireland, Dublin
Dublin City University
Corcoran, B.
Ireland, Dublin
Dublin City University
Sayers, K.
Ireland, Dundalk
Dundalk Institute of Technology
Kirabira, John Baptist
Uganda, Kampala
Makerere University
Sebbit, Adam M.
Uganda, Kampala
Makerere University
McDonnell, K. A.
Ireland, Dublin
University College Dublin
Dowling, D.
Ireland, Dublin
University College Dublin
Statistics
Citations: 55
Authors: 7
Affiliations: 4
Identifiers
Doi:
10.1016/j.surfcoat.2012.05.079
ISSN:
02578972
Research Areas
Environmental