Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/6129

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dc.contributor.authorAbreu, C. S.-
dc.contributor.authorAmaral, M.-
dc.contributor.authorFernandes, A. J. S.-
dc.contributor.authorOliveira, F. J.-
dc.contributor.authorSilva, R. F.-
dc.contributor.authorGomes, J. R.-
dc.date.accessioned2007-02-08T12:04:56Z-
dc.date.available2007-02-08T12:04:56Z-
dc.date.issued2006-
dc.identifier.citation"Diamond and related materials". ISSN 0925-9635. 15:4-8 (2006) 739-744.eng
dc.identifier.issn0925-9635eng
dc.identifier.urihttp://hdl.handle.net/1822/6129-
dc.description.abstractSilicon nitride (Si3N4) ceramics were selected as substrates due to their thermal and chemical compatibility to diamond that ensure the adequate NCD adhesion for mechanical purposes. NCD deposition was performed by hot-filament chemical vapour method (HFCVD) using Ar/H2/CH4 gas mixtures. The tribological assessment of homologous pairs of NCD films was accomplished using reciprocating ball-on-flat tests using NCD coated Si3N4 plates and balls. The friction evolution is characterized by an initial running-in regime with a sharp peak up to 0.70, shortly followed by a steady-state regime identified by very low friction coefficients values (0.02–0.03). The threshold load prior to delamination depends on the starting surface roughness of the substrates and attains a value of ¨40 N. In terms of wear performance, the NCD films reveal a mild wear regime (K~10-7 mm3 N-1 m-1) for self-mated dry sliding conditions.eng
dc.language.isoengeng
dc.publisherElseviereng
dc.rightsopenAccesseng
dc.subjectNanocrystallineeng
dc.subjectHot filament CVDeng
dc.subjectTribologyeng
dc.titleFriction and wear performance of HFCVD nanocrystalline diamond coated silicon nitride ceramicseng
dc.typearticlepor
dc.peerreviewedyeseng
sdum.number4-8eng
sdum.pagination739-744eng
sdum.publicationstatuspublishedeng
sdum.volume15eng
oaire.citationStartPage739por
oaire.citationEndPage744por
oaire.citationIssue4-8por
oaire.citationVolume15por
dc.identifier.doi10.1016/j.diamond.2005.10.042por
dc.subject.wosScience & Technologypor
sdum.journalDiamond and related materialspor
Appears in Collections:CIICS - Artigos em revistas de circulação internacional com arbitragem científica
DEM - Artigos em revistas de circulação internacional com arbitragem científica

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