Data/hora: 07/06/2024 02:41:08

Provedor de dados: | 42
País: | Brazil
Título: | A Novel Porous Diamond - Titanium Biomaterial: Structure, Microstructure, Physico-Mechanical Properties and Biocompatibility
Autores: | GUIMARÃES,ZULMIRA A.S.; DAMATTA,RENATO A.; GUIMARÃES,RENAN S.; FILGUEIRA,MARCELLO.
Data: | 2017-12-01
Ano: | 2017
Palavras-chave: | Biomaterials; Titanium; Diamond; Sintering; Characterization; Biocompatibility.
Resumo: | ABSTRACT With the aim of introducing permanent prostheses with main properties equivalent to cortical human bone, Ti-diamond composites were processed through powder metallurgy. Grade 1 titanium and mixtures of Ti powder with 2%, 5% and 10 wt% diamond were compacted at 100MPa, and then sintered at 1250°C/2hr/10-6mbar. Sintered samples were studied in the point of view of their microstructures, structures, yield strength and elastic modulus. The results showed that the best addition of diamonds was 2 wt%, which led to a uniform porosity, yield strength of 370MPa and elastic modulus of 13.9 GPa. Samples of Ti and Ti-2% diamond were subjected to in vitro cytotoxicity test, using cultures of VERO cells, and it resulted in a biocompatible and nontoxic composite material.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603111
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201720160750
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.89 n.4 2017
Fonte: | info:eu-repo/semantics/openAccess