Bilayered coatings of BN/diamond grown on Si3N4 ceramic substrates
authors Ferreira, S; Duarte, P; Almeida, FA; Silva, RF
nationality International
journal DIAMOND AND RELATED MATERIALS
author keywords Nanocrystalline diamond; Chemical Vapour Deposition (CVD); Cubic boron nitride; Magnetron sputtering; Silicon nitride
keywords CUBIC BORON-NITRIDE; THIN-FILMS; DIAMOND FILMS; DEPOSITION
abstract Cubic boron nitride (c-BN) is a well known material to be used in machining of ferrous metallic alloys, namely as a coating. However, in most practical cases, there is a lack of adhesion to the substrate material. In this work, BN coatings were deposited by magnetron sputtering on silicon nitride (Si3N4) ceramic substrates using an intermediate layer of CVD microcrystalline (MCD) or nanocrystalline diamond (NCD). The goal was to improve the c-BN content by using diamond interlayers, and to optimize film adhesion to the substrate by employing such ceramic, which is known to provide very high adhesion strength to CVD diamond. The BN/NCD/Si3N4 combination demonstrated to be unique regarding the absence of delamination at both the BN/diamond and diamond/substrate interfaces, also providing the highest c-BN phase content. (C) 2011 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 0925-9635
year published 2011
volume 20
issue 4
beginning page 464
ending page 467
digital object identifier (doi) 10.1016/j.diamond.2011.02.009
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000291140200002
  ciceco authors
  impact metrics
times cited (wos core): 1
journal impact factor (jcr 2016): 2.561
5 year journal impact factor (jcr 2016): 2.103
category normalized journal impact factor percentile (jcr 2016): 67.091
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