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

dc.contributorUniversity of Minho
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversity of Lisbon
dc.contributorCQE – Instituto Superior Técnico
dc.date.accessioned2020-12-12T01:15:42Z
dc.date.accessioned2022-12-19T20:42:10Z
dc.date.available2020-12-12T01:15:42Z
dc.date.available2022-12-19T20:42:10Z
dc.date.created2020-12-12T01:15:42Z
dc.date.issued2020-03-25
dc.identifierSurface and Coatings Technology, v. 386.
dc.identifier0257-8972
dc.identifierhttp://hdl.handle.net/11449/198543
dc.identifier10.1016/j.surfcoat.2020.125487
dc.identifier2-s2.0-85079651124
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5379177
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.
dc.languageeng
dc.relationSurface 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 Ti
dc.typeArtículos de revistas


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