Electrical conductivity of the proton conductor BaZr0.9Y0.1O3-δ obtained by high temperature annealing

被引：113

作者：

Duval, S. B. C.

Holtappels, P.

Vogt, U. F.

Pomjakushina, E.

Conder, K.

Stimming, U.

Graule, T.

机构：

[1] Swiss Fed Labs Mat Testing & Res, Lab High Performance Ceram, CH-8600 Dubendorf, Switzerland

[2] ETHZ, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[3] Paul Scherrer Inst, Lab Dev & Methods, CH-5232 Villigen, Switzerland

[4] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

来源：

SOLID STATE IONICS | 2007年 / 178卷 / 25-26期

关键词：

BZY; proton conductor; perovskite; grain boundary; optical floating zone;

D O I：

10.1016/j.ssi.2007.08.006

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 influence of a high temperature annealing (similar to 2200 degrees C) on the microstructure and the electrical properties of BaZr0.9Y0.1O3-delta has been examined. The high temperature annealing was achieved using an optical floating zone furnace. The obtained sample is homogeneous with an average grain size of about 5 mu m. No additional phases were found in the XRD pattern and the structure was identified to be cubic. After the high temperature annealing, the grain boundary conductivity is increased by approximately two orders of magnitude, while the bulk conductivity remains the same. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1437 / 1441

页数：5

共 14 条

[1] Enhanced sintering of yttrium-doped barium zirconate by addition of ZnO [J].