Anion transfer in ZrO2 and HfO2 bicrystals containing 12 mol % Y2O3

被引：0
作者：
N. I. Sorokin
机构：
[1] Russian Academy of Sciences,Shubnikov Institute of Crystallography
来源：
Russian Journal of Electrochemistry | 2000年 / 36卷
关键词：
Oxygen Vacancy; HfO2; Impedance Curve; Bulk Impedance; Bulk Single Crystal;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The oxygen-ionic conduction in the YSZ|YSZ and YSZ|YSH bicrystals, where YSZ and YSH are single-crystalline solid solutions of, respectively, ZrO2 and HfO2 with 12 mol % Y2O3 are studied using the impedance method. Bicrystals consist of two single crystals separated by a common intercrystalline boundary. The direction of the applied electrical field is chosen perpendicular to the intercrystalline boundary. The oxygen-ion transfer in the bicrystals is determined primarily by the transport processes in the bulk single crystals. This is associated with a fast exchange by oxygen vacancies between single crystals at the intercrystalline boundary.
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页码：319 / 322
页数：3
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