ELECTRICAL-CONDUCTIVITY AND DIELECTRIC-CONSTANT OF MAGNESIUM PHOSPHATE-GLASSES

被引：13

作者：

HIGAZY, AA

机构：

[1] Physics Department, Faculty of Science, Qatar University, Doha

来源：

MATERIALS LETTERS | 1995年 / 22卷 / 5-6期

关键词：

D O I：

10.1016/0167-577X(94)00254-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ac complex-impedance measurements were carried out on the prepared MgO-P2O5, glasses in the frequency range 0.1-100 kHz and temperature range 293-573 K. The low frequency Cole-Cole dependence of the Z'' (Z') impedance and the linear dependence of epsilon'' (epsilon') dielectric constant revealed that the conduction mechanism in the present glass system is mainly ionic. The de electrical conductivity, the activation energy and the relaxation energy are found to be sensitive to the glass composition. It is found from the obtained data that the MgO-P2O5 glass system can be divided into two compositional regions.

引用

页码：289 / 296

页数：8

共 34 条

[1] THE EFFECT OF DONOR DOPANT CONCENTRATION ON THE ROOM-TEMPERATURE RESISTIVITY OF BATIO3 CERAMICS WITH POSITIVE TEMPERATURE COEFFICIENTS OF RESISTANCE [J].