HFCVD nanocrystalline diamond coatings for tribo-applications in the presence of water
authors Abreu, CS; Amaral, M; Oliveira, FJ; Gomes, JR; Silva, RF
nationality International
journal DIAMOND AND RELATED MATERIALS
author keywords Nanocrystalline diamond; Chemical vapour deposition (CVD); Tribology; Water lubrication
keywords COATED SILICON-NITRIDE; CVD DIAMOND; PERFORMANCE; FRICTION; TRIBOSYSTEMS; COMPOSITES; BEHAVIOR; LOAD
abstract Nanocrystalline diamond (NCD) is increasingly popular as engineered surface coatings intended for tribo-mechanical applications. Sliding may occur in the presence of water, or aqueous solutions, for example in mechanical face seals, MEMS, or in preliminary testing bearing surfaces for biotribological applications. NCD coatings of 20 pm thickness were grown by the hot-filament chemical vapour deposition (HFCVD) method on Si(3)N(4) ceramic substrates. The water lubricated NCD/NCD tribosystem was studied in an oscillating bail-on-flat tribometer. For all loading conditions up to the threshold load prior to film delamination (85 N), very low friction coefficient values (mu similar to 0.02 to 0.05) combined with a high wear resistance (10(-9) to 10(-8) mm(3)N(-1)m(-1))were observed. (C) 2008 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 0925-9635
year published 2009
volume 18
issue 2-3
beginning page 271
ending page 275
digital object identifier (doi) 10.1016/j.diamond.2008.08.016
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000264429300039
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journal analysis (jcr 2019):
journal impact factor 2.65
5 year journal impact factor 2.699
category normalized journal impact factor percentile 58.345
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