Influence of annealing temperature on corrosion resistance of tio2 nanotubes grown on ti–30ta alloy

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUnifei-Federal University of Itajubá-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCapellato, Patricia-
Autor(es): dc.creatorSachs, Daniela-
Autor(es): dc.creatorVilela, Filipe Bueno-
Autor(es): dc.creatorMelo, Miriam M.-
Autor(es): dc.creatorSilva, Gilbert-
Autor(es): dc.creatorRodrigues, Geovani-
Autor(es): dc.creatorde C. Zavaglia, Cecilia A.-
Autor(es): dc.creatorNakazato, Roberto Z. [UNESP]-
Autor(es): dc.creatorClaro, Ana Paula R. A. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:27:07Z-
Data de disponibilização: dc.date.available2022-02-22T00:27:07Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/met10081106-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199337-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199337-
Descrição: dc.descriptionWith little success, researchers has been searching for alloys with elements such as tantalum to improve the long-term life of implants. The Ti–30Ta alloy presents an elastic modulus E = 69 GPa that is close to that of bone (E = 17–25 GPa) than Ti cp (E = 105 GPa). In addition, nanostructure surface modification influences cell behavior and antimicrobial activity. So, this study investigates the corrosion behavior of surface modification by TiO2 nanotube grown on Ti–30Ta alloy after anodization process in the electrolyte glycerol + NH4F 0.25% at 30 V, for nine hours without annealing and annealed in 450◦C, 530◦C and 600◦C (5◦C/min). The electrochemical behavior was evaluated by three electrodes cell. The counter-electrode of graphite, reference-electrode of saturated calomel electrode and working-electrode at electrolyte of 0.15 M NaCl + 0.03 M NaF, with pH = 6 for 8000 s. The scanned region ranged from −0.8 V to values up to 3.5 V with a sweep rate 0.166 mV/s. Potentiodynamic polarization curves were obtained with a potentiostat. The sample was characterized by scanning electron microscopy (SEM) imaging, X-ray diffraction analysis (XRD) and wettability with a contact angle goniometer. We concludes from the obtained results that all treatment surfaces are hydrophilic (<90◦). The surface covered with TiO2 nanotube crystallinity showed anatase phase after annealing at 450◦C, 530◦C and 600◦C; the exceptions were the anodized-without-annealing treatment and without-surface-modification alloys. The electrochemical behavior of the five groups investigated showed similar high resistance to corrosion solution under all conditions.-
Descrição: dc.descriptionAssociation for Progressive Communications-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionInstitute of Physics and Chemistry Unifei-Federal University of Itajubá, Av. BPS, 1303-
Descrição: dc.descriptionInstitute of Mechanical Engineering Unifei-Federal University of Itajubá, Av. BPS, 1303-
Descrição: dc.descriptionFaculty of Mechanical Engineering Unicamp-State University of Campinas, Rua Mendeleyev, 200-
Descrição: dc.descriptionDepartment of Chemical and Energy Unesp-São Paulo State University, Av. Ariberto Pereira da Cunha, 333-
Descrição: dc.descriptionDepartment of Chemical and Energy Unesp-São Paulo State University, Av. Ariberto Pereira da Cunha, 333-
Descrição: dc.descriptionCNPq: 201271/2010-9-
Descrição: dc.descriptionCNPq: 486352/2013-7-
Formato: dc.format1-10-
Idioma: dc.languageen-
Relação: dc.relationMetals-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnnealing temperature-
Palavras-chave: dc.subjectCorrosion resistance-
Palavras-chave: dc.subjectTiO2 nanotube-
Palavras-chave: dc.subjectTi–30Ta alloy-
Título: dc.titleInfluence of annealing temperature on corrosion resistance of tio2 nanotubes grown on ti–30ta alloy-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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