IMPEDANCE STUDIES OF THE CELL PT/(NA,SR) BETA''-ALUMINA/PT

被引：2

作者：

DURAKPASA, H ^{[1
]}

DORNER, G ^{[1
]}

FAFILEK, G ^{[1
]}

BREITER, MW ^{[1
]}

机构：

[1] INST TECH ELEKTROCHEM,9 GETREIDEMARKT,A-1060 VIENNA,AUSTRIA

来源：

SOLID STATE IONICS | 1991年 / 47卷 / 1-2期

关键词：

D O I：

10.1016/0167-2738(91)90178-E

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：

The present work confirms that the temperature range in which the conductivity of polycrystalline (Na, Sr) beta"-aluminas can be obtained by two-probe or four-probe measurements depends upon the composition. A separate determination of the inter- and intragranular resistance is feasible in a limited temperature range for each of the compositions. The intragranular resistivity of the polycrystalline material is considerably smaller than the total resistivity. The activation energy of the intragranular conductivity is lower than that of the total conductivity and shows an increase with the Sr content. The activation energy of the total conductivity increases strongly with the Sr content and passes through a maximum.

引用

页码：51 / 56

页数：6

共 15 条

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