Characterisation of ferroelectric-calcium phosphate composites and ceramics

被引：38

作者：

Gittings, J. P.

Bowen, C. R. ^{[1
]}

Turner, I. G.

Baxter, F.

Chaudhuri, J.

机构：

[1] Univ Bath, Dept Mech Engn, Mat Res Ctr, Bath BA2 7AY, Avon, England

[2] Univ Bath, Dept Chem Engn, Bath BA2 7AY, Avon, England

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2007年 / 27卷 / 13-15期

基金：

英国工程与自然科学研究理事会;

关键词：

piezoelectric properties; ferroelectric properties; dielectric properties; composites;

D O I：

10.1016/j.jeurceramsoc.2007.02.120

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：

This paper Studies the effect of composite composition on the electrical properties of BaTiO3-hydroxyapatite (HA) composites and examines the high temperature electrical properties of pure HA. At least 80% volume of BaTiO3 was needed for the composites to exhibit any stress-induced piezoelectric potential. At elevated temperatures, pure HA exhibits an increase in real part of conductivity and permittivity. The increased ionic conductivity at elevated temperatures can be used to manufacture polarised HA bioceramics with permanent surface charges as polarised HA exhibited a depolarisation Current at elevated temperatures. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4187 / 4190

页数：4

共 19 条

[1] Composite dielectrics and conductors: simulation, characterization and design [J].