Ac conductivity and dielectric relaxation in ionically conducting soda-lime-silicate glasses

被引：126

作者：

Dutta, Alo ^{[1
]}

Sinha, T. P. ^{[1
]}

Jena, P. ^{[2
]}

Adak, S. ^{[2
]}

机构：

[1] Bose Inst, Dept Phys, Kolkata 700009, W Bengal, India

[2] Natl Inst Technol, Dept Ceram Engn, Rourkela 769008, India

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2008年 / 354卷 / 33期

关键词：

glass ceramics; conductivity; dielectric properties; relaxation; electric modulus;

D O I：

10.1016/j.jnoncrysol.2008.05.028

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：

The frequency dependent conductivity and dielectric relaxation of alkali ions in some soda-lime-silicate (Na2O-CaO-SiO2) glasses are investigated over a frequency range from 50 Hz to 1MHz and in a temperature range from room temperature to 603 K by using alternating current impedance spectroscopy. The conductivity isotherms show a transition from frequency independent dc region to dispersive region where the conductivity continuously increases with increasing frequency. The electric modulus representation has been used to provide comparative analysis of the ion transport properties in these glasses. The scaling behavior of imaginary part of electric modulus indicates that all dynamical processes occurring at different frequencies give the same activation energy. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3952 / 3957

页数：6

共 27 条

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