Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorTribocorrosion and Nanomedicine—Brazilian Branch-
Autor(es): dc.contributorScience and Technology-
Autor(es): dc.creatorKuroda, Pedro Akira Bazaglia [UNESP]-
Autor(es): dc.creatorde Freitas Quadros, Fernanda [UNESP]-
Autor(es): dc.creatorSousa, Karolyne dos Santos Jorge [UNESP]-
Autor(es): dc.creatorDonato, Tatiani Ayako Goto [UNESP]-
Autor(es): dc.creatorde Araújo, Raul Oliveira [UNESP]-
Autor(es): dc.creatorGrandini, Carlos Roberto [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:33:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:33:39Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10856-019-6350-7-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201481-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201481-
Descrição: dc.descriptionTitanium alloys have been widely used as biomaterials, especially for orthopedic prostheses and dental implants, but these materials have Young's modulus almost three times greater than human cortical bones. Because of this, new alloys are being produced for the propose of decreasing Young's modulus to achieve a more balanced mechanical compatibility with the bone. In this paper, it is reported the development of Ti-25Ta alloys as a base material, in which was introduced zirconium, with concentration varying between 0 and 40 wt%, with the aim of biomedical applications. The alloys were prepared in an arc-melting furnace. The microstructural analysis was performed by x-ray diffraction as well as optical and scanning electron microscopy. Selected mechanical properties were analyzed by microhardness and Young’s modulus measurements, and cytotoxicity analysis by indirect test. X-ray measurements revealed the presence of α″ phase in the alloy without zirconium; α″ + β phases for alloys with 10, 20, and 30 wt% of zirconium, and β phase only for the alloy with 40 wt% of zirconium. These results were corroborated by the microscopy results. The hardness of the alloy was higher than that of cp-Ti due to the actions of zirconium and tantalum as hardening agents. The Young’s modulus decreases with high levels of zirconium due to the stabilization of the β phase. The cytotoxicity test showed that the extracts of studied alloys are not cytotoxic for osteoblast cells in short periods of culture. [Figure not available: see fulltext.].-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionUNESP—Universidade Estadual Paulista Laboratório de Anelasticidade e Biomateriais-
Descrição: dc.descriptionIBTN/Br—Institute of Biomaterials Tribocorrosion and Nanomedicine—Brazilian Branch-
Descrição: dc.descriptionIFSP—São Paulo Federal Institute of Education Science and Technology-
Descrição: dc.descriptionUNESP—Universidade Estadual Paulista Laboratório de Anelasticidade e Biomateriais-
Descrição: dc.descriptionCNPq: 157.509/2015-0-
Idioma: dc.languageen-
Relação: dc.relationJournal of Materials Science: Materials in Medicine-
???dc.source???: dc.sourceScopus-
Título: dc.titlePreparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.