Abstract
In this paper, BaZr0,84Y0,16O3-α (BZY16) pellets were synthesized by solid state reaction. ZnO was added at different contents to improve sintering. The effect is investigated as a function of its content in the powder mixture prior to sintering. Whatever the ZnO content, the sole phase observed by X-ray diffraction presents the perovskite structure of BaZrO3 and no trace of crystallized ZnO can be detected. Scanning electron microscopy observations show that the pellets density increases with the ZnO content to reach a maximum around 2 wt.% ZnO. Over this value, a significant increase of macroporosities occurs. On the another hand, the best ionic conductivity is obtained for 1 wt.% ZnO.
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