Effect of bio-functional MAO layers on the electrochemical behaviour of highly porous Ti

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dc.contributor.authorAlves, A. C.
dc.contributor.authorCosta, A. I.
dc.contributor.authorToptan, F. [UNESP]
dc.contributor.authorAlves, J. L.
dc.contributor.authorLeonor, I.
dc.contributor.authorRibeiro, E.
dc.contributor.authorReis, R. L.
dc.contributor.authorPinto, A. M.P.
dc.contributor.authorFernandes, J. C.S.
dc.contributor.institutionUniversity of Minho
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of Lisbon
dc.contributor.institutionCQE – Instituto Superior Técnico
dc.date.accessioned2020-12-12T01:15:42Z
dc.date.available2020-12-12T01:15:42Z
dc.date.issued2020-03-25
dc.description.abstractTi foams are attractive for orthopaedic applications due to reduced Young's modulus and ability of bone in-growth. However, poor corrosion behaviour and lack of bioactivity are yet to be overcome. In the present work, highly porous Ti samples were processed by powder metallurgy with space holder technique and bio-functionalized by micro-arc oxidation, resulting in nano/micro structured TiO2 surfaces containing bioactive elements. The electrochemical behaviour of these bio-functionalized highly porous Ti surfaces was evaluated through potentiodynamic polarization and EIS in physiological solution at body temperature. Results showed that bio-functionalization improved the corrosion behaviour of highly porous Ti. However, increased macro-porosity led to an increased corrosion rate.en
dc.description.affiliationCMEMS-UMinho - Center of MicroElectroMechanical Systems University of Minho
dc.description.affiliationDep. Mechanical Engineering University of Minho
dc.description.affiliationIBTN/Br – Brazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine UNESP, Campus de Bauru, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01
dc.description.affiliation3B's Research Group – Biomaterials Biodegradables and Biomimetics University of Minho
dc.description.affiliationICVS/3B's-PT Government Assoc. Laboratory University of Minho
dc.description.affiliationDepartment of Chemical Engineering – Instituto Superior Técnico University of Lisbon
dc.description.affiliationCQE – Instituto Superior Técnico
dc.description.affiliationUnespIBTN/Br – Brazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine UNESP, Campus de Bauru, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01
dc.description.sponsorshipFundação para a Ciência e a Tecnologia
dc.description.sponsorshipIdFundação para a Ciência e a Tecnologia: 2020-2023
dc.description.sponsorshipIdFundação para a Ciência e a Tecnologia: M-ERA NET/0001/2015
dc.description.sponsorshipIdFundação para a Ciência e a Tecnologia: UID/EEA/04436/2019
dc.identifierhttp://dx.doi.org/10.1016/j.surfcoat.2020.125487
dc.identifier.citationSurface and Coatings Technology, v. 386.
dc.identifier.doi10.1016/j.surfcoat.2020.125487
dc.identifier.issn0257-8972
dc.identifier.scopus2-s2.0-85079651124
dc.identifier.urihttp://hdl.handle.net/11449/198543
dc.language.isoeng
dc.relation.ispartofSurface and Coatings Technology
dc.sourceScopus
dc.subjectCorrosion
dc.subjectEIS
dc.subjectMicro-arc oxidation
dc.subjectPorous Ti
dc.subjectPowder metallurgy
dc.titleEffect of bio-functional MAO layers on the electrochemical behaviour of highly porous Tien
dc.typeArtigo
unesp.author.orcid0000-0001-5054-9083[1]

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