CARBON-DIOXIDE SENSOR MECHANISM OF POROUS HYDROXYAPATITE CERAMICS

被引：21

作者：

NAGAI, M ^{[1
]}

SAEKI, T ^{[1
]}

NISHINO, T ^{[1
]}

机构：

[1] SEKISUI PLAST CO LTD,TENRI,NARA 632,JAPAN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 05期

关键词：

electrical properties; hydroxyapatite; modeling; porous materials; sensors;

D O I：

10.1111/j.1151-2916.1990.tb05228.x

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：

Hydroxyapatite and Cl− ‐containing hydroxyapatite powders are prepared and characterized. Reversible substitution of CO2‐3 for OH− at the surface is presumed to be responsible for the sensor function. The role of Cl−, which is necessary to realize the sensor function and is incorporated during soaking treatment, is considered as follows. It may reduce the strain caused by the incorporation of CO2‐3 (which is larger than OH−), and, hence, promote the reversible substitution reaction. This behavior is presumed because Cl− ‐containing hydroxyapatite samples exhibit sensor characteristics typical of CO2 without any treatment. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：1456 / 1460

页数：5

共 14 条

[1]

BONEL G, 1972, ANN CHIM FRANCE, V7, P65

[2] MECHANISM OF SUBSTITUTION IN CARBONATED APATITES [J].