HIGH-TEMPERATURE CHARACTERISTICS OF SYNTHETIC HYDROXYAPATITE

被引：249

作者：

ZHOU, JM

ZHANG, XD

CHEN, JY

ZENG, SX

DEGROOT, K

机构：

[1] ACAD SINICA,SHANGHAI INST CERAM,SHANGHAI 200050,PEOPLES R CHINA

[2] LEIDEN UNIV,SCH MED,DEPT BIOMAT,2300 RA LEIDEN,NETHERLANDS

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 1993年 / 4卷 / 01期

关键词：

D O I：

10.1007/BF00122983

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The characteristics of synthetic hydroxyapatite sintered at high temperature were studied by means of X-ray diffraction, infrared and differential thermal analysis, and thermogravimetric analysis. The results show that synthetic HAp with a Ca/P ratio near 1.67 is stable when sintered in dry or wet air below 1200-degrees-C. Even after long times, no tricalcium phosphate (TCP) can be observed. Beyond 1200-degrees-C, HAp loses its OH groups gradually and is transformed to oxyapatite [Ca10O(PO4)6 or Ca(PO4)6O. square]. At 1450-degrees-C oxyapatite dissociates into the products alpha-Ca3(PO4)2, Ca2P2O7 and Ca4P2O9.

引用

页码：83 / 85

页数：3

共 9 条

[1] A CALCIUM HYDROXYAPATITE PRECIPITATED FROM AN AQUEOUS-SOLUTION - AN INTERNATIONAL MULTIMETHOD ANALYSIS [J].