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dc.creatorSánchez López, Juan Carloses
dc.creatorAbad, Manuel D.es
dc.creatorCarvalho, Ies
dc.creatorEscobar-Galindo, Ramónes
dc.creatorBenito, Nes
dc.creatorRibeiro, Ses
dc.creatorHenriques, M.es
dc.creatorCavaleiro, A.es
dc.creatorCarvalho, S.es
dc.date.accessioned2018-04-17T07:39:50Z
dc.date.available2018-04-17T07:39:50Z
dc.date.issued2012
dc.identifier.citationSánchez López, J.C., Abad, M.D., Carvalho, I., Escobar-Galindo, R., Benito, N., Ribeiro, S.,...,Carvalho, S. (2012). Influence of silver content on the tribomechanical behavior on Ag-TiCN bioactive coatings. Surface and Coatings Technology, 206, 2192-2198.
dc.identifier.issn0257-8972es
dc.identifier.urihttps://hdl.handle.net/11441/73028
dc.description.abstracturface modification of bulk materials used in biomedical applications has become an important prerequisite for better biocompatibility. In particular, to overcome the particle generation, low-wear coatings based on carbon (nitrogen) and containing antimicrobial elements such as silver are promising candidates. Thus, the present work explores the potentialities of silver-containing carbonitride-based (Ag-TiCN) thin films prepared by direct current unbalanced reactive magnetron sputtering. The silver content in the coatings was varied from 0 to 26.7 at.% by changing the targets and the fraction of C2H2 and N2 in the gas mixture with Ar. The obtained Ag-TiCN based coatings were characterized in terms of composition and microstructure. Mechanical and tribological properties of the films were studied by nanoindentation and reciprocating pin-on disk testing in a fetal bovine serum solution, respectively. Raman, scanning electron microscope and energy dispersive X-ray analysis was carried out in the contact region after tribological tests to obtain information about the friction mechanism. The cytotoxicity of the coatings was assessed by in vitro tests using fibroblast cells. The coatings comprised a mixture of TiCxN1 − x, Ag and a-C(N)x phases whose relative proportion varied depending on the Ag/Ti ratio. The mechanical, tribological and cytotoxicity properties were correlated with the chemical and phase composition. When the Ag/Ti ratios were below 0.20 (Ag contents < 6.3 at.%) the films resulted harder (~ 18 GPa) with higher wear resistance (~ 10−6 mm3/Nm), showing similar friction coefficient (~ 0.3) and good biocompatibility.es
dc.description.sponsorshipEspaña Mineco CSD2008-00023 HP2007-0116es
dc.description.sponsorshipJunta de Andalucía 06782es
dc.description.sponsorshipCSIC-FCT 2007PT0043es
dc.description.sponsorshipFCT-Fundação FEDER PTDC/CTM/102853/2008es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofSurface and Coatings Technology, 206, 2192-2198.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectNanocompositees
dc.subjectAmorphous carbon phaseses
dc.subjectTribologyes
dc.subjectFetal bovine serumes
dc.subjectWear mechanismes
dc.subjectCytotoxicityes
dc.titleInfluence of silver content on the tribomechanical behavior on Ag-TiCN bioactive coatingses
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/submittedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.projectIDPTDC/CTM/102853/2008es
dc.relation.projectID2007PT0043es
dc.relation.projectID06782es
dc.relation.projectIDCSD2008-00023es
dc.relation.projectIDHP2007-0116es
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.surfcoat.2011.09.059es
dc.identifier.doi10.1016/j.surfcoat.2011.09.059es
idus.format.extent7 p.es
dc.journaltitleSurface and Coatings Technologyes
dc.publication.volumen206es
dc.publication.initialPage2192es
dc.publication.endPage2198es

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