Growth Mechanisms and Tribocorrosion Behavior of Bio-Functionalized ZrO2 Nanoparticles-Containing MAO Coatings Formed on Ti-40Nb Alloy

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorTribocorrosion and Nanomedicine-
Autor(es): dc.contributorCBPF–Brazilian Center for Research in Physics-
Autor(es): dc.contributorCMEMS-UMinho–Center of MicroElectroMechanical Systems-Universidade do Minho-
Autor(es): dc.contributorUniversity of Minho-
Autor(es): dc.creatorCosta, N. A. [UNESP]-
Autor(es): dc.creatorRossi, A. L.-
Autor(es): dc.creatorAlves, A. C.-
Autor(es): dc.creatorPinto, A. M.P.-
Autor(es): dc.creatorToptan, F.-
Autor(es): dc.creatorRocha, L. A. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:45:48Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:48Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s40735-021-00488-6-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205969-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205969-
Descrição: dc.descriptionTribocorrosion resistance, low elastic modulus, and faster promotion of osseointegration are among the current requirements to avoid aseptic loosening in artificial joints. Therefore, in this work, a promising orthopedic Ti-40Nb alloy was used and its surface was modified by micro-arc oxidation (MAO), resulting in a multi-scale porous surface incorporated with multiple bioactive species (Ca, P, Mg, Zn, and Sr) and ZrO2 nanoparticles (ZrO2 NPs). The effect of different processing voltages is discussed on the formation mechanisms of the coatings and incorporation of ZrO2 NPs. The resulting tribocorrosion behavior is elucidated for two loading conditions in phosphate-buffered saline (PBS) solution. Similar growth mechanisms were observed for all films, resulting in a triplex structure (barrier film, inner porous layer, and outer porous layer). However, higher processing voltage produced thicker anodic films with smaller average surface porosity and increased rutile content. Higher voltage also resulted in higher amounts of ZrO2 NPs in the coating. A mechanism is proposed to explain the incorporation of NPs, based on the combined effect of electrophoresis and strong micro-arcs and discharges originated during MAO treatment. That enhanced incorporation of ZrO2 NPs may retard eventual phenomena of cracking associated with harder materials (rutile) under vigorous mechanical solicitations.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia-
Descrição: dc.descriptionFaculdade de Ciências UNESP–Universidade Estadual Paulista-
Descrição: dc.descriptionIBTN/Br–Brazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine-
Descrição: dc.descriptionCBPF–Brazilian Center for Research in Physics-
Descrição: dc.descriptionCMEMS-UMinho–Center of MicroElectroMechanical Systems-Universidade do Minho-
Descrição: dc.descriptionDepartment of Mechanical Engineering University of Minho-
Descrição: dc.descriptionFaculdade de Ciências UNESP–Universidade Estadual Paulista-
Descrição: dc.descriptionFAPESP: #2017/24300-4-
Descrição: dc.descriptionFAPESP: #2017/24319-7-
Descrição: dc.descriptionFAPESP: #2018/25532-9-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: M-ERA-NET/0001/2015-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: UIDB/04436/2020-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: UIDP/04436/2020-
Idioma: dc.languageen-
Relação: dc.relationJournal of Bio- and Tribo-Corrosion-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectMicro-arc oxidation-
Palavras-chave: dc.subjectNanoparticle incorporation-
Palavras-chave: dc.subjectOrthopedic implant-
Palavras-chave: dc.subjectTi-40Nb alloy-
Palavras-chave: dc.subjectTribocorrosion-
Título: dc.titleGrowth Mechanisms and Tribocorrosion Behavior of Bio-Functionalized ZrO2 Nanoparticles-Containing MAO Coatings Formed on Ti-40Nb Alloy-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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