Effect of Al2O3 addition on bioactivity, thermal and mechanical properties of some bioactive glasses

被引：71

作者：

El-Kheshen, A. A. ^{[1
]}

Khaliafa, F. A. ^{[1
]}

Saad, E. A. ^{[2
]}

Elwan, R. L. ^{[1
]}

机构：

[1] Natl Res Ctr, Cairo, Egypt

[2] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt

来源：

CERAMICS INTERNATIONAL | 2008年 / 34卷 / 07期

关键词：

Al(2)o(3); glass; biomedical applications; physical properties;

D O I：

10.1016/j.ceramint.2007.05.016

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Three bio-phosphate glass-specimens with and without Al2O3 addition were prepared in order to shed light on their bioactivity behavior towards the simulated body fluid biological solution (SBF). The results revealed that Al2O3 has significant effect on the ability of bio-glass to form the hydroxycarbonate apatite layer on its surface. That layer was detected by FTIR spectra, SEM micrographs and EDAX pattern. Also, the effect of Al2O3 on the mechanical properties was studied by measuring the hardness of the glass samples, which increased by Al2O3 addition. The thermal expansion coefficient was decreased by increasing the A1203 percent in the bio-glass samples. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1667 / 1673

页数：7

共 16 条

[1]

Devitrification of bioactive invert phosphate glasses [J].