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A Novel Porous Diamond - Titanium Biomaterial: Structure, Microstructure, Physico-Mechanical Properties and Biocompatibility
GUIMARÃES, ZULMIRA A S; DAMATTA, RENATO A; GUIMARÃES, RENAN S; FILGUEIRA, MARCELLO.
  • GUIMARÃES, ZULMIRA A S; Universidade Estadual do Norte Fluminense Darcy Ribeiro. Centro de Ciência e Tecnologia. Laboratório de Materiais Avançados. Rio de Janeiro. BR
  • DAMATTA, RENATO A; Universidade Estadual do Norte Fluminense Darcy Ribeiro. Centro de Ciência e Tecnologia. Laboratório de Materiais Avançados. Rio de Janeiro. BR
  • GUIMARÃES, RENAN S; Universidade Estadual do Norte Fluminense Darcy Ribeiro. Centro de Ciência e Tecnologia. Laboratório de Materiais Avançados. Rio de Janeiro. BR
  • FILGUEIRA, MARCELLO; Universidade Estadual do Norte Fluminense Darcy Ribeiro. Centro de Ciência e Tecnologia. Laboratório de Materiais Avançados. Rio de Janeiro. BR
An. acad. bras. ciênc ; 89(4): 3111-3121, Oct.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-886824
ABSTRACT
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.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Titanium / Biocompatible Materials / Materials Testing / Diamond Limits: Animals / Humans Language: English Journal: An. acad. bras. ciênc Journal subject: Science Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual do Norte Fluminense Darcy Ribeiro/BR

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Full text: Available Index: LILACS (Americas) Main subject: Titanium / Biocompatible Materials / Materials Testing / Diamond Limits: Animals / Humans Language: English Journal: An. acad. bras. ciênc Journal subject: Science Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual do Norte Fluminense Darcy Ribeiro/BR