ELECTRICAL-CONDUCTIVITY OF STABILIZED ZIRCONIA WITH YTTERBIA AND SCANDIA

被引：269

作者：

YAMAMOTO, O ^{[1
]}

ARATI, Y ^{[1
]}

TAKEDA, Y ^{[1
]}

IMANISHI, N ^{[1
]}

MIZUTANI, Y ^{[1
]}

KAWAI, M ^{[1
]}

NAKAMURA, Y ^{[1
]}

机构：

[1] TOHO GAS CO LTD,TECH RES INST,TOKAI,AICHI 476,JAPAN

来源：

SOLID STATE IONICS | 1995年 / 79卷

关键词：

STABILIZED ZIRCONIA; IONIC CONDUCTIVITY; SOLID OXIDE FUEL CELL (SOFC);

D O I：

10.1016/0167-2738(95)00044-7

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 electrical conductivity change with annealing at 1000 degrees C in the Yb2O3-ZrO2 (YbSZ) and Sc2O3-ZrO2 (ScSZ) systems have been examined. The conductivity change depended on the composition of the dopant. In the YbSZ system, the sintered sample with 10 mol% Yb2O3 showed only slight conductivity decrease with annealing, while those with 8 mol% Yb2O3 and 12 mol% Yb2O3 a significant decrease. The ScSZ with 8 mol% Sc2O3 (88cSZ) exhibited the cubic phase and those with 11 and 12 mol% Sc2O3 (11ScSZ and 12ScSZ) the rhombohedral phases at room temperature. 8ScSZ showed a significant aging effect with annealing at 1000 degrees C. 11ScSZ and 12 ScSZ showed no conductivity change with annealing.

引用

页码：137 / 142

页数：6

共 16 条

[1] ELECTRICAL-CONDUCTIVITY OF SC2O3-ZRO2 COMPOSITIONS BY 4-PROBE DC AND 2-PROBE COMPLEX IMPEDANCE TECHNIQUES [J].