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dc.contributor.authorAbad, Manuel D.-
dc.contributor.authorVedhuis, Stephen C.-
dc.contributor.authorEndrino, José Luis-
dc.contributor.authorBeake, Ben D.-
dc.contributor.authorGarcía-Luis, Alberto-
dc.contributor.authorBrizuela, Marta-
dc.contributor.authorSánchez-López, J.C.-
dc.date.accessioned2014-03-21T12:08:12Z-
dc.date.available2014-03-21T12:08:12Z-
dc.date.issued2014-
dc.identifier.citationJournal of Vacuum Science & Technology A, 32 (2014)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/94026-
dc.description.abstractTiBC coatings with different phase compositions (nanocrystalline TiBxCy or TiB2 phases mixed or not with amorphous carbon, a-C) were prepared by magnetron sputtering. These coatings were comparatively studied in terms of phase stability after thermal annealing at 250, 500, 750, and 1000 °C in argon using Raman and x-ray absorption near-edge spectroscopy techniques. The main differences were observed at temperatures above 500 °C when oxidation processes occur and the mechanical properties deteriorate. At 1000 °C, the samples were fully oxidized forming a-C, TiO2, and B2O3 as final products. Higher hardness and reduced indentation modulus values and better tribological properties were observed at 750 °C for nanocomposite structures including amorphous carbon and ternary TiBxCy phases. This behavior is attributed to a protective effect associated with the a-C phase which is achieved by the encapsulation of the nanocrystals in the coating and the better hard/lubricant phase ratio associated with this type of coatinges_ES
dc.language.isoenges_ES
dc.publisherAmerican Institute of Physicses_ES
dc.rightsopenAccesses_ES
dc.titleMechanical and phase stability of TiBC coatings up to 1000 es_ES
dc.typeartículoes_ES
dc.identifier.doi10.1116/1.4861365-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1116/1.4861365es_ES
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