Electrical conductivity in Ca1-ySryTi1-xFexO3-x/2 system

被引：0

作者：

Mashkina, EA ^{[1
]}

Dunyushkina, LA ^{[1
]}

Demin, AK ^{[1
]}

Esina, NO ^{[1
]}

机构：

[1] RAS, Inst High Temp Electrochem, Ural Div, Ekaterinburg, Russia

来源：

HIGH TEMPERATURE MATERIALS CHEMISTRY, PTS I AND II, PROCEEDINGS | 2000年 / 15卷

关键词：

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The samples of the systems CaTi1-xFexO3-x/2 (x=0...0.6), SrTi1-xFexO3-x/2 (x=0... 0.5), Ca0.5Sr0.5Ti1-xFexO3-x/2 (x=0.... 0.5) were synthesized by solid state reaction procedure. Total conductivity of the samples was measured as a function of the oxygen partial pressure at 1000degreesC by means of the four-probe technique in the interval of oxygen partial pressure from 1 to 10(-18) atm. Ti substitution by Fe results in a considerable increase of both ionic and electronic conductivity. It was stated that in the systems SrTi1-xFexO3-x/2 and Ca0.5Sr0.5Ti1-xFexO3-x/2 the ionic conductivity rises monotonously with the iron concentration increase, while for the CaT1-xFexO3-x/2 systems, the ionic conductivity dependence on x has a maximum.

引用

页码：699 / 702

页数：4

共 4 条

[1] DEFECT STRUCTURE OF ACCEPTOR-DOPED CALCIUM TITANATE AT ELEVATED-TEMPERATURES
BALACHANDRAN, U
ODEKIRK, B
EROR, NG
[J]. JOURNAL OF MATERIALS SCIENCE, 1982, 17 (06) : 1656 - 1662
[2] FORMATION OF POINT DEFECTS IN CALCIUM TITANATE
GEORGE, WL
GRACE, RE
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1969, 30 (04) : 881 - &
[3] MIXED CONDUCTION AND OXYGEN PERMEATION IN THE SUBSTITUTED OXIDES FOR CATIO3
IWAHARA, H
ESAKA, T
MANGAHARA, T
[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 1988, 18 (02) : 173 - 177
[4] TAKAHASHI T, 1969, DENKI KAGAKU, V37, P857

← 1 →