Morphology, crystalline structure and chemical composition of MAO treated Ti-15Zr-Mo surfaces enriched with bioactive ions

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dc.contributor.authorSousa, Tiago Santos Pereira [UNESP]
dc.contributor.authorDa Costa, Natália De Araujo [UNESP]
dc.contributor.authorCorrea, Diego Rafael Nespeque [UNESP]
dc.contributor.authorRocha, Luis Augusto [UNESP]
dc.contributor.authorGrandini, Carlos Roberto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionGrupo de Pesquisa em Materiais Metálicos Avançados
dc.date.accessioned2020-12-12T02:31:18Z
dc.date.available2020-12-12T02:31:18Z
dc.date.issued2019-01-01
dc.description.abstractIn this study, MAO treatment was used to enrich, with bioactive Ca, Mg and P atoms, as-casted and heat-treated Ti-15Zr-xMo (x = 0, 5, 10 and 15 wt%) alloys, for potential use as advanced metallic biomaterials. The chemical composition of the surface was evaluated by EDS and XPS measurements. The morphology and microstructure was analyzed by OM and SEM images. Crystalline structure and phase composition were characterized by XRD measurements. The results indicated that the oxide layers were porous, with microstructural features of the bulk (grain size and secondary phases) slightly affecting the surface characteristics (pore size, chemical and phase composition). The crystalline structure of the oxide layers were composed by a mixture of anatase and rutile phases (TiO2), with a minority of tetragonal zirconia (ZrO2) and traces of CaCO3 and P2O3 compounds. Chemical analysis indicated that the oxide layers were composed mainly by Ti and Zr oxides, with successful incorporation of the bioactive elements. The obtained results evidenced that the surface characteristics of MAO-treated Ti surfaces can be properly adjusted by the addition of alloying elements and implementation of specifc heat treatments on the substrate. This fnding can be quite useful for the development of novel biomedical implants.en
dc.description.affiliationInstituto de Biomateriais Tribocorrosão e Nanomedicina Universidade Estadual Paulista (UNESP)
dc.description.affiliationLaboratório de Anelasticidade e Biomateriais Universidade Estadual Paulista (UNESP)
dc.description.affiliationInstituto Federal de Educação Ciência e Tecnologia de São Paulo (IFSP) Grupo de Pesquisa em Materiais Metálicos Avançados
dc.description.affiliationUnespInstituto de Biomateriais Tribocorrosão e Nanomedicina Universidade Estadual Paulista (UNESP)
dc.description.affiliationUnespLaboratório de Anelasticidade e Biomateriais Universidade Estadual Paulista (UNESP)
dc.identifierhttp://dx.doi.org/10.1590/1980-5373-MR-2019-0005
dc.identifier.citationMaterials Research, v. 22, n. 6, 2019.
dc.identifier.doi10.1590/1980-5373-MR-2019-0005
dc.identifier.fileS1516-14392019000600205.pdf
dc.identifier.issn1980-5373
dc.identifier.issn1516-1439
dc.identifier.scieloS1516-14392019000600205
dc.identifier.scopus2-s2.0-85076376270
dc.identifier.urihttp://hdl.handle.net/11449/201389
dc.language.isoeng
dc.relation.ispartofMaterials Research
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBioactivity
dc.subjectBiomaterial
dc.subjectMicro-arc oxidation
dc.subjectOxide layer
dc.subjectTi alloy
dc.titleMorphology, crystalline structure and chemical composition of MAO treated Ti-15Zr-Mo surfaces enriched with bioactive ionsen
dc.typeArtigo
unesp.author.lattes2949983867418338[5]
unesp.author.orcid0000-0002-3336-309X[5]
unesp.departmentFísica - FCpt

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