CALCIUM APATITE PREPARED FROM CALCIUM HYDROXIDE AND ORTHOPHOSPHORIC ACID

被引：185

作者：

OSAKA, A

MIURA, Y

TAKEUCHI, K

ASADA, M

TAKAHASHI, K

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Okayama University, Okayama-shi, 700

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 1991年 / 2卷 / 01期

关键词：

D O I：

10.1007/BF00701687

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Calcium hydroxyapatite has been prepared due to a direct precipitation reaction between 0.3 M orthophosphoric acid solution and 0.1 mol calcium hydroxide dispersed in 200 ml water. The effect of the addition rate of the acid solution, reaction temperature and mixing molar Ca/P ratio is examined on the thermal stability and stoichiometry of the precipitates. Optimum conditions for HAp suitable for dense ceramics are derived from the results. The nonstoichiometry is interpreted in terms of the pH profile in the vicinity of the hydroxide particles and the state of the orthophosphate ions.

引用

页码：51 / 55

页数：5

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