Thermoelectric power of ErAl(Mg)O-3-delta and LaAl(Mg)O-3-delta

被引：6

作者：

Ahlgren, EO

Ranlov, J

Poulsen, FW

机构：

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1995年 / 142卷 / 12期

关键词：

D O I：

10.1149/1.2048489

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Thermoelectric power and electrical conductivity of LaAl0.95Mg0.05O3-delta and ErAl0.95Mg0.05O3-delta have been determined as a function of oxygen partial pressure between 1 and 10(-15) atm at 1000 degrees C and as a function of temperature in air and in a hydrogen-water buffer. In oxidizing atmospheres these compounds are found to be p-type conductors and in reducing atmospheres ionic conductors. The thermoelectric power at 1000 degrees C depends strongly on oxygen partial pressure. In both reducing and oxidizing atmospheres the thermoelectric power depends on temperature. In this work a new method for calculating ionic transference numbers directly from measurements of the thermoelectric power is discussed.

引用

页码：4230 / 4234

页数：5

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