PREPARATION AND CHARACTERIZATION OF AL2O3 REINFORCED HYDROXYAPATITE

被引：47

作者：

JI, HX ^{[1
]}

MARQUIS, PM ^{[1
]}

机构：

[1] UNIV BIRMINGHAM,SCH MET & MAT,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

来源：

BIOMATERIALS | 1992年 / 13卷 / 11期

关键词：

HYDROXYAPATITE; ALUMINA; REINFORCEMENT; MICROSTRUCTURE;

D O I：

10.1016/0142-9612(92)90011-C

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The microstructure of A12O3 reinforced hydroxyapatite (HA-Ca5(PO4)3OH) was studied. It was demonstrated that in this composite the Al2O3 Particles are uniformly distributed in a matrix of spherical HA agglomerates formed by primary needlelike HA particles present before making green compact. In the HA + 20 wt% A12O3 system, hydroxyapatite is partially decomposed into alpha-Ca3(PO4)2 and CaO with H2O vapour during sintering. Subsequently, the CaO is combined with Al2O3 to produce calcium aluminates (CaAl2O4 and CaAl4O7).

引用

页码：744 / 748

页数：5

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