Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/20343
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Salgueiredo, E. | pt |
dc.contributor.author | Abreu, C. S. | pt |
dc.contributor.author | Amaral, M. | pt |
dc.contributor.author | Oliveira, F. J. | pt |
dc.contributor.author | Gomes, J. R. | pt |
dc.contributor.author | Silva, R. F. | pt |
dc.date.accessioned | 2017-12-07T19:43:50Z | - |
dc.date.issued | 2013 | pt |
dc.identifier.issn | 0043-1648 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20343 | - |
dc.description.abstract | The tribological response of multilayer micro/nanocrystalline diamond coatings grown by the hot filament CVD technique is investigated. These multigrade systems were tailored to comprise a starting microcrystalline diamond (MCD) layer with high adhesion to a silicon nitride (Si3N4) ceramic substrate, and a top nanocrystalline diamond (NCD) layer with reduced surface roughness. Tribological tests were carried out with a reciprocating sliding configuration without lubrication. Such composite coatings exhibit a superior critical load before delamination (130-200 N), when compared to the mono- (60-100 N) and bilayer coatings (110 N), considering similar to 10 mu m thick films. Regarding the friction behaviour, a short-lived initial high friction coefficient was followed by low friction regimes (friction coefficients between 0.02 and 0.09) as a result of the polished surfaces tailored by the tribological solicitation. Very mild to mild wear regimes (wear coefficient values between 4.1 x 10(-8) and 7.7 x 10(-7) min(3) N-1 m(-1)) governed the wear performance of the self-mated multilayer coatings when subjected to high-load short-term tests (60-200 N; 2 h; 86 m) and medium-load endurance tests (60 N; 16 h; 691 m). (C) 2013 Elsevier B.V. All rights reserved. | pt |
dc.language.iso | eng | pt |
dc.publisher | ELSEVIER SCIENCE SA | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/100689/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F41757%2F2007/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F26787%2F2006/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | CHEMICAL-VAPOR-DEPOSITION | pt |
dc.subject | COATED SILICON-NITRIDE | pt |
dc.subject | X-RAY-DIFFRACTION | pt |
dc.subject | NANOCRYSTALLINE DIAMOND | pt |
dc.subject | ADHESION STRENGTH | pt |
dc.subject | FILMS | pt |
dc.subject | PERFORMANCE | pt |
dc.subject | BEHAVIOR | pt |
dc.subject | SI3N4 | pt |
dc.subject | PRETREATMENTS | pt |
dc.title | Self-mated tribological systems based on multilayer micro/nanocrystalline CVD diamond coatings | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 225 | pt |
degois.publication.issue | 1–2 | pt |
degois.publication.lastPage | 234 | pt |
degois.publication.title | WEAR | pt |
degois.publication.volume | 303 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1016/j.wear.2013.03.049 | pt |
dc.identifier.doi | 10.1016/j.wear.2013.03.049 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Self-mated tribological systems based on multilayer micronanocrystalline CVD diamond coatings_10.1016j.wear.2013.03.049.pdf | 2.51 MB | Adobe PDF |
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