Thermal decomposition of carbonate-containing apatites with various Sr-Ca compositions and characterization of carbonate ions

被引：1
|
作者：
Kanno, T
Horiuchi, J
Kobayashi, M
Motogami, Y
Akazawa, T
机构：
[1] Kitami Inst Technol, Dept Appl & Environm Chem, Kitami, Hokkaido 0908507, Japan
[2] Tama Pori Co, Tokyo, Gunma 3700505, Japan
[3] Hokkaido Ind Res Inst, Kita Ku, Sapporo, Hokkaido 0600819, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1999年 / 107卷 / 06期
关键词：
Sr substituted apatites; IR spectra of hydroxyapatites; thermal stability of hydroxyapatites; temperature-programmed desorption spectra of CO2; thermal stability of carbonate ions; amount of carbonate ions;
D O I：
10.2109/jcersj.107.517
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Qualitative and quantitative thermal behavior of carbonate ions incorporated into hydroxyapatite with various Sr-Ca compositions was investigated. Desorption of CO2 from apatite by heating and the amount of CO2 that evolved from the apatite were strongly influenced by the Sr content. Sr-60%-substituted apatite (designated as Sr60) showed the lowest peak temperature and the most desorbed amount of CO2 of all the samples Sr0, Sr20, Sr40, Sr60, Sr80 and Sr100. The dependence of the peak temperature on Sr content was similar to that of the thermal stability of the apatite on Sr content, suggesting that the apatite with lower thermal stability was able to incorporate more carbonate ions into its structure.
引用
收藏
页码：517 / 521
页数：5
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