ELECTRICAL-CONDUCTIVITY OF THE LI2SO4-LI2WO4 SYSTEM

被引：15

作者：

DISSANAYAKE, MAKL

CAREEM, MA

BANDARANAYAKE, PWSK

GUNAWARDANE, RP

WIJESEKARA, CN

机构：

[1] Faculty of Science, University of Peradeniya, Peradeniya

来源：

SOLID STATE IONICS | 1990年 / 40-1卷

关键词：

D O I：

10.1016/0167-2738(90)90278-Y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrical conductivity of different compositions of the Li2SO4-Li2WO4 binary system has been measured below 500°C using complex impedance technique. Conductivity isotherms at various temperatures exhibit two maxima, one at 34 mole% Li2WO4 composition and the other at 70 mole% Li2WO4 composition. The maximum conductivity observed at 34 mole% Li2WO4 composition has been attributed to the composite effect resulting from the interfacial conductivity in the finely dispersed grains in the two-phase eutectic mixture. The maximum conductivity observed at 70 mole% Li2WO4 near the solid solubility limit in the Li2WO4 based solid solution region has been attributed to the availability of more interstitial space for Li-ion migration, as a result of the replacement of larger W by smaller S atoms. © 1990.

引用

页码：23 / 26

页数：4

共 22 条

[1]

ARONSSON R, 1980, J PHYS PARIS C, V41, pC6

[2] IONIC-CONDUCTIVITY AND SOLID-PHASE TRANSITIONS IN LI2SO4-LI2WO4 SYSTEM RELATING TO ION-TRANSPORT MECHANISM [J].