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dc.creatorCiarsolo, Ies
dc.creatorFernández, Xes
dc.creatorRuíz de Gopegui, U.es
dc.creatorZubizarreta, C.es
dc.creatorAbad, Manuel D.es
dc.creatorMariscal, A.es
dc.creatorCaretti, Ignacioes
dc.creatorJiménez, Ies
dc.creatorSánchez López, Juan Carloses
dc.date.accessioned2018-04-19T08:50:07Z
dc.date.available2018-04-19T08:50:07Z
dc.date.issued2014
dc.identifier.citationCiarsolo, I., Fernández, X., Ruíz de Gopegui, U., Zubizarreta, C., Abad, M.D., Mariscal, A.,...,Sánchez López, J.C. (2014). Tribological comparison of different C-based coatings in lubricated and unlubricated conditions. Surface and Coatings Technology, 257, 278-285.
dc.identifier.issn0257-8972es
dc.identifier.urihttps://hdl.handle.net/11441/73220
dc.description.abstractThe use of carbon-based coatings (hydrogenated and non-hydrogenated DLC, doped and alloyed-DLC) is of wide interest due to its applications in mechanical components submitted to friction and wear including sliding parts in automotive engines. A tribological comparative analysis using a reciprocating (SRV) tester in lubricated and unlubricated conditions with a 4-stroke motor oil has been carried out on six currently relevant state-of-the-art coatings (namely WC/a-C, TiBC/a-C and TiC/a-C:H nanocomposites, Ti-doped DLC, BCN film and a crystalline monolithic TiC film as reference). The quantification of the fraction of the sp2-bonded matrix has been done by fitting of C 1s XPS peak and the mechanical properties evaluated by nanoindentation. The comparative analysis has allowed us to identify the capabilities of each system depending on the testing conditions and the possible synergies as a function of the chemical composition and film nature. Under lubricated harsh conditions (max. contact pressure 1.7 GPa) only coatings displaying hardness superior to 20 GPa could stand the sliding motion without failure. At lower contact pressures, a significant fraction of sp2 carbon (≥ 75%) is advantageous for reducing wear in boundary lubrication. WC/a-C, BCN and Ti-DLC films showed the best tribological response in dry sliding conditions. This fundamental information would be of relevance for assisting engineers in selecting best partnership for lubrication systemses
dc.description.sponsorshipEspaña MEC MAT2007-66881-C02-01 MAT2011-29074-C02-01es
dc.description.sponsorshipCONSOLIDER FUNCOAT CSD2008-00023es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofSurface and Coatings Technology, 257, 278-285.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAmorphous carbones
dc.subjectTribologyes
dc.subjectLubricationes
dc.subjectSRVes
dc.subjectweares
dc.subjectFrictiones
dc.titleTribological comparison of different C-based coatings in lubricated and unlubricated conditionses
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.projectIDCSD2008-00023es
dc.relation.projectIDAT2007-66881-C02-01es
dc.relation.projectIDMAT2011-29074-C02-01es
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.surfcoat.2014.07.068es
dc.identifier.doi10.1016/j.surfcoat.2014.07.068es
idus.format.extent8 p.es
dc.journaltitleSurface and Coatings Technologyes
dc.publication.volumen257es
dc.publication.initialPage278es
dc.publication.endPage285es
dc.contributor.funderMinisterio de Educación y Ciencia (MEC). España

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