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Vacuum Tribological Properties of W-S-N Coatings Synthesized by Direct Current Magnetron Sputtering

2022Journal article Open access
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dc.contributor.authorYaqub, Talha Bin
dc.contributor.authorYaqoob, Khuram
dc.contributor.authorMukhtar, Amir
dc.contributor.authorFernandes, Filipe
dc.contributor.authorBondarev, Andrey
dc.contributor.authorFerreira, Fabio
dc.contributor.authorAl-Rjoub, Abbas
dc.contributor.authorCavaleiro, Albano
dc.date.accessioned2023-01-30T14:57:45Z
dc.date.available2023-01-30T14:57:45Z
dc.date.issued2022
dc.description.abstractThis work deals with the investigation of the tribological performance of DC magnetron sputteredW-S-N coatings under vacuum atmosphere, as part of the exploration of multi-environment sliding properties of W-S-N solid lubricants. This study is part of the systematic testing of W-S-N solid lubricants in different environments, especially vacuum, which is often ignored. The trend is to test sliding properties in dry N2 by considering it as replacement of vacuum environment testing. This approach is not appropriate. In this work, a set of coatings was synthesized with N-alloying content in the range of 0–25.5 at.%. A maximum S/W ratio of 1.47 was observed for the pure WSx coating. A maximum hardness of 8.0 GPa was observed for 23 at.% of N-alloying. The coating with the lowest N content (14.6 at.%) displayed the lowest friction, specific wear rate and wear scar depth under vacuum conditions. Despite superior sliding performance at room temperature (35% humidity), 200 C and dry nitrogen conditions, the performance of the WSN12.5 coating deteriorated vacuum environment.pt_PT
dc.description.sponsorshipThis work is sponsored by FEDER National funds FCT under the projects: SMARTLUB ref. “POCI-01-0145-FEDER-031807”, CEMMPRE ref. “UIDB/00285/2020”, On-SURF ref. “POCI-01-0247- FEDER-024521”, “LA/P/0112/2020” and Atrito-0 ref. “POCI-01-0145-FEDER-030446”. Andrey Bondarev acknowledges the support of the project “International Mobility of the scientific workers MSCAIF IV at Czech Technical University in Prague, Grant No: CZ.02.2.69/0.0/0.0/20_079/0017983”.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/coatings12111646pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/22011
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.relationPOCI-01-0145-FEDER-031807pt_PT
dc.relationCentre for Mechanical Enginnering, Materials and Processes
dc.relationLA/P/0112/2020pt_PT
dc.relationPOCI-01-0145-FEDER-030446pt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2079-6412/12/11/1646pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectW-S-N filmspt_PT
dc.subjectSolid lubricantspt_PT
dc.subjectFriction and wearpt_PT
dc.subjectDC magnetron sputteringpt_PT
dc.titleVacuum Tribological Properties of W-S-N Coatings Synthesized by Direct Current Magnetron Sputteringpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Mechanical Enginnering, Materials and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT
oaire.citation.issue11pt_PT
oaire.citation.startPage1646pt_PT
oaire.citation.titleCoatingspt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFernandes
person.givenNameFilipe
person.identifier995468
person.identifier.ciencia-id2113-A18B-EEE8
person.identifier.orcid0000-0003-4035-3241
person.identifier.scopus-author-id55644767300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryf3fb450f-5f22-4f0c-8916-7742d519f6af
relation.isProjectOfPublicatione9972dd7-ceaf-49ee-959a-d2a0e393b124
relation.isProjectOfPublication.latestForDiscoverye9972dd7-ceaf-49ee-959a-d2a0e393b124

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