Journal
SOLID STATE IONICS
Volume 179, Issue 9-10, Pages 324-329Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2008.02.047
Keywords
proton conductor; BaZrO3; perovskite; sinterability
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BaZr1-xYxO3-delta is a proton-conducting oxide that has both high ionic conductivity and good chemical stability, but disadvantageously has low sinterability. In this work, two co-dopant systems, BaZr0.9(Y1-xMx)0.1O(3-delta) (M=Ga, In), were studied with the aim of improving sinterability. In both systems, sinterability was markedly improved. Although the addition of Ga markedly decreased the conductivity of BaZr1-xYxO3-delta, the addition of In did not decrease the conductivity significantly. It was shown that BaZr0.9Y0.05In0.05O3-delta is a practically useful material with a good combination of conductivity and sinterability. (C) 2008 Elsevier B.V. All rights reserved.
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