STRUCTURE AND CONDUCTIVITY OF ZIRCONIUM-DOPED POLYCRYSTALLINE LITHIUM YTTRIUM-OXIDE

被引：11
|
作者：
ZOU, Y
PETRIC, A
机构：
[1] Department of Materials Science and Engineering, McMaster University, Hamilton
来源：
MATERIALS RESEARCH BULLETIN | 1993年 / 28卷 / 11期
关键词：
LITHIUM YTTRATE; IONIC CONDUCTIVITY; SOLID ELECTROLYTES;
D O I：
10.1016/0025-5408(93)90097-W
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Zr-doped and undoped lithium yttrate polycrystalline samples were prepared to study the effects of zirconium-doping on the structure and conductivity of LiYO2. The solubility of zirconium oxide and the stable crystal structures were determined by X-ray diffraction. It was found that less than 1 at % Zr was sufficient to stabilize the tetragonal structure. The conductivity of the Zr-doped lithium yttrate samples was measured from 200 to 550-degrees-C by ac complex impedance analysis. Undoped LiYO2 showed the best conductivity which at 400-degrees-C was 3x10(-3) S/cm. Therefore LiYO2 is a potential solid electrolyte for high temperature lithium sensors and other solid ionic devices.
引用
收藏
页码：1169 / 1175
页数：7
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