Properties of thoria-yttria solid electrolytes prepared by the citrate technique

被引：14

作者：

Cosentino, IC ^{[1
]}

Muccillo, R ^{[1
]}

机构：

[1] IPEN CNEN SP, BR-05422970 SAO PAULO, BRAZIL

来源：

MATERIALS LETTERS | 1997年 / 32卷 / 5-6期

基金：

巴西圣保罗研究基金会;

关键词：

solid electrolytes; thoria-yttria; citrate technique; impedance spectroscopy; low sintering temperature;

D O I：

10.1016/S0167-577X(97)00052-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Reactive ThO2:9 mol% Y2O3 powders with submicron average particle size have been obtained by the citrate technique. Pressing and sintering at 1550 degrees C/2 h produced pellets with larger than 90% of the theoretical density. X-ray diffractometry and impedance spectroscopy analyses show that a solid solution has been attained. After pressing and sintering the material behaves as an oxygen ion conducting solid electrolyte. Results on ThO2:Y2O3 prepared by the conventional solid state synthesis are also reported for comparison purposes.

引用

页码：295 / 300

页数：6

共 15 条

[1] INVESTIGATIONS ON BATH0.9GD0.1O3 AS AN INTERMEDIATE TEMPERATURE FUEL-CELL SOLID ELECTROLYTE [J].