Chemical compatibility of RE1-xSrxMnO3±δ (RE = La, Pr, Nd, Gd, 0≤x≤0.5) with yttria stabilized zirconia solid electrolyte

被引：26

作者：

Kostogloudis, GC ^{[1
]}

Ftikos, C ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Dept Chem Engn, Lab Inorgan Mat Technol, GR-15780 Athens, Greece

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 1998年 / 18卷 / 12期

关键词：

D O I：

10.1016/S0955-2219(98)00096-X

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The chemical reactivity of RE1-xSrxMnO3+/-delta (RE = La, Pr, Nd, Gd) perovskite oxides with yttria stabilized zirconia (YSZ) was investigated. Equimolar perovskite/YSZ powder mixtures were prepared and annealed in air at 1300 degrees C for 120 h. The X-ray diffraction analysis showed the formation of RE2Zr2O7 and SrZrO3 reaction products for perovskites with low and high Sr-content, respectively. Small amounts of Mn3O4 were identified for samples that showed high reactivity with YSZ. The extent of RE2Zr2O7 formation is reduced as the ionic radius of the rare earth cation decreases, the only exception being La2Zr2O7, which is formed in minor amounts. The formation of SrZrO3 is favored with increasing Sr-content and decreasing tolerance factor of the perovskite. Among the compositions studied, La1-xSrxMnO3+/-delta showed the best chemical compatibility with YSZ electrolyte. (C) 1998 Elsevier Science Limited. All rights reserved.

引用

页码：1707 / 1710

页数：4

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