MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF HYDROXYAPATITE CERAMICS WITH ZIRCONIA DISPERSION PREPARED BY POST-SINTERING

被引：78

作者：

IOKU, K

YOSHIMURA, M

SOMIYA, S

机构：

[1] Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Yokohama, 227, 4259 Nagatsuta, Midori

来源：

BIOMATERIALS | 1990年 / 11卷 / 01期

关键词：

Hydroxyapatite; mechanical properties; zirconia;

D O I：

10.1016/0142-9612(90)90053-S

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 [生物医学工程];

摘要：

Hydroxyapatite ceramics with zirconia dispersion from fine powders synthesized hydrothermally were post-sintered at 1000-1300°C under 200 M Pa of argon for 1 h without capsules, after normal sintering in air at 1200°C for 3 h. Densification was most significant with post-sintering at 1200°C. Fracture toughness, Vickers hardness and elastic properties of these materials were investigated. Post-sintering gave twice the K1c value of transparent pure hydroxyapatite ceramics. Vickers hardness and Young's modulus of the ceramics were increased by post-sintering. © 1990.

引用

页码：57 / 61

页数：5

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