Development of ceria-doped zirconia electrolytes with high toughness and ionic conductivity

被引：10
|
作者：
Yeh, Tsung-Her [1 ]
Chou, Chen-Chia [1 ]
机构：
[1] Natl Taiwan Univ Sci & Technol, Dept Mech Engn, Taipei 10672, Taiwan
来源：
SOLID STATE IONICS | 2009年 / 180卷 / 32-35期
关键词：
Mechanical properties; Electrical properties; Electrolyte; Toughness; Bending strength; ELECTRICAL-PROPERTIES; TETRAGONAL ZIRCONIA; FRACTURE; CERAMICS;
D O I：
10.1016/j.ssi.2009.08.012
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：
Development Of Y2O3 stabilized ZrO2 electrolytes for solid oxide fuel cell with better mechanical properties was attempted. 3 mol% Y2O3 stabilized ZrO2 doped with 3-15 mol% CeO2 was investigated in the present work. The results reveal that the toughness and the bending strength of 3-6 mol% CeO2 doped 3 mol% Y2O3-ZrO2 are much higher than that of 8 mol% Y2O3-ZrO2. The best ionic conductivity observed in 6 mol% ceria-doped 3 mol% Y2O3-ZrO2 electrolyte is better than that of 8 mol% Y2O3-ZrO2 at 800 degrees C, which indicates the possibility of developing ZrO2-based electrolyte with enhanced toughness. (C) 2009 Published by Elsevier B.V.
引用
收藏
页码：1529 / 1533
页数：5
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