Title: Frictional behaviour of diamond-like carbon and diamond coatings in oscillating sliding
Authors: Mohrbacher, Hardy ×
Blanpain, Bart
Celis, Jean-Pierre
Roos, Jozef #
Issue Date: 10-Dec-1993
Publisher: Elsevier Sequoia
Series Title: Surface & Coatings Technology vol:62 issue:1-3 pages:583-588
Conference: International Conference on Metallurgical Coatings and Thin Films edition:20 location:San Diego, CA, USA date:19-23 April 1993
Abstract: It is generally accepted that diamond-like carbon and diamond coatings have good frictional properties. Here it is shown that the frictional behaviour of diamond-like carbon coatings is strongly dependent on the actual deposition process used and that the frictional behaviour of diamond coatings is markedly different, depending on the counterbody material. An arc-ion-plated amorphous carbon (a-C) coating in oscillating sliding against a corundum counterbody has self-lubricating properties, owing to the formation of debris with characteristics of a defected graphitic phase. However, a plasma-assisted, chemical vapour deposition (CVD) hydrogenated a-C coating in oscillating sliding against a corundum counterbody does not give rise to measurable debris formation and, in comparison with the a-C coating, has a higher coefficient of friction. Brittle, non-metallic counterbody materials, such as corundum and diamond, in oscillating sliding contact with hot filament CVD diamond coatings result in a low coefficient of friction, whereas metallic materials, such as WC-C and Cr steel, form transfer layers on the diamond coatings, resulting in high friction.
ISSN: 0257-8972
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Chemical and Extractive Metallurgy Section (-)
Department of Materials Engineering - miscellaneous
Surface and Interface Engineered Materials
Sustainable Metals Processing and Recycling
× corresponding author
# (joint) last author

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