Co-doping effect on the properties of scandia stabilized ZrO2

被引：4
|
作者：
Nikonov, A. V. [1 ]
Khrustov, V. R. [1 ]
Bokov, A. A. [1 ]
Koleukh, D. S. [1 ]
Zayats, S. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Electrophys, Ural Branch, Ekaterinburg 620016, Russia
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2014年 / 50卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
solid electrolyte; Sc2O3 stabilized ZrO2; co-dopant; conductivity; ELECTRICAL-CONDUCTIVITY; IONIC-CONDUCTIVITY; ELECTROLYTE MATERIAL; CRYSTAL-STRUCTURE; AGING BEHAVIOR; ZIRCONIA; SYSTEM; PHASE; SC2O3; OXIDE;
D O I：
10.1134/S1023193514070106
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The influence of low concentrations (1 mol %) of few co-dopants (Y2O3, La2O3, CeO2, Gd2O3, Er2O3, ZnO) on the structure and characteristic of 10 mol % scandia stabilized zirconia was studied. Sintering kinetics and thermal expansion coefficients of synthesized solid eletrolytes were determined. It was found that co-doping increased the conductivity of electrolytes at temperature below 550A degrees C. However, at high temperatures, the introduction of co-dopants decreased the conductivity; moreover, this reduction was more severe the more the ionic radii of Zr4+ and co-dopant differ.
引用
收藏
页码：625 / 629
页数：5
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