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dc.contributor.authorSouto, Ricardo Manuel 
dc.contributor.authorIzquierdo Pérez, Javier 
dc.contributor.authorBolat, Georgiana
dc.contributor.authorCimpoesu, Nicanor
dc.contributor.authorTrincă, Lucia Carmen
dc.contributor.authorMareci, Daniel
dc.date.accessioned2020-03-24T13:05:15Z
dc.date.available2020-03-24T13:05:15Z
dc.date.issued2016es_ES
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/19052
dc.description.abstractA new titanium base Ti-21Nb-15Ta-6Zr alloy covered with hydroxyapatite-zirconia (HA-ZrO2) by pulsed laser deposition (PLD) technique was characterized regarding its corrosion resistance in simulated physiological Ringer’s solution at 37 °C. For the sake of comparison, Ti-6Al-4V standard implant alloy, with and without hydroxyapatite-zirconia coating, was also characterized. Multiscale electrochemical analysis using both conventional averaging electrochemical techniques, namely electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization, and spatially-resolved microelectrochemical techniques (scanning electrochemical microscopy, SECM) were used to investigate the electrochemical behaviour of the materials. In addition, scanning electron microscopy evidenced that no relevant surface morphology changes occurred on the materials upon immersion in the simulated physiological solution, despite variations in their electrochemical behaviour. Although uncoated metals appear to show better performances during conventional corrosion tests, the response is still quite similar for the HA–ZrO2 coated materials while providing superior resistance towards electron transfer due to the formation of a more dense film on the surface, thus effectively behaving as a passive material. It is believed corrosion of the HA–ZrO2 coated Ti-21Nb-15Ta-6Zr alloy will have negligible effect upon biochemical and cellular events at the bone-implant interface and could facilitate osseointegrationen
dc.format.mimetypeapplication/pdf
dc.language.isoenes_ES
dc.relation.ispartofseriesApplied Surface Science, 385, 368-378 (2016)es_ES
dc.rightsLicencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
dc.titleElectrochemical characterization of pulsed layer deposited hydroxyapatite zirconia layers on Ti-21Nb-15Ta-6Zr alloy for biomedical applicationen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doidoi: 10.1016/j.apsusc.2016.05.130
dc.subject.keywordTi alloysen
dc.subject.keywordPulsed layer depositionen
dc.subject.keywordhydroxyapatite-zirconia coatingen
dc.subject.keywordelectrochemical impedance spectroscopyen
dc.subject.keywordscanning electrochemical microscopyen
dc.subject.keywordbiomaterialen


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Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
Except where otherwise noted, this item's license is described as Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)