A Novel Porous Diamond - Titanium Biomaterial: Structure, Microstructure, Physico-Mechanical Properties and Biocompatibility

被引：2

作者：

Guimaraes, Zulmira A. S. ^{[1
]}

Damatta, Renato A. ^{[2
]}

Guimaraes, Renan S. ^{[1
]}

Filgueira, Marcello ^{[1
]}

机构：

[1] Univ Estadual Norte Fluminense, Ctr Ciencia & Tecnol, Lab Mat Avancados, Ave Alberto Lamego,2000,Campos Goytacazes, BR-28013602 Rio De Janeiro, RJ, Brazil

[2] Univ Estadual Norte Fluminense, Ctr Biociencias & Biotecnol, Lab Biol Celular & Tecidual, Ave Alberto Lamego,2000,Campos Goytacazes, BR-28013602 Rio De Janeiro, RJ, Brazil

来源：

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS | 2017年 / 89卷 / 04期

关键词：

biomaterials; titanium; diamond; sintering; characterization; biocompatibility; MECHANICAL-PROPERTIES; ALLOYS;

D O I：

10.1590/0001-3765201720160750

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 degrees C/2hr/10(-6)mbar. 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.

引用

页码：3111 / 3121

页数：11

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