Electrtic transport properties and the size effect in ZrO2-based ceramic materials

被引：0
|
作者：
Glushkova, V. B.
Popov, V. P.
Tikhonov, P. A.
Podzorova, L. I.
Il'icheva, A. A.
机构：
[1] Russian Acad Sci, Grebenshchikov Inst Silicate Chem, St Petersburg 199155, Russia
[2] Russian Acad Sci, Inst Physicochem Problems Ceram Mat, Moscow, Russia
来源：
GLASS PHYSICS AND CHEMISTRY | 2006年 / 32卷 / 05期
基金：
俄罗斯基础研究基金会;
关键词：
Zirconia; Solid Solution; Ceria; Ionic Conductivity; Glass Physic;
D O I：
10.1134/S1087659606050142
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Amorphous nanomaterials in the ZrO2-CeO2 system are synthesized. The aging and crystallization processes in a complex zirconium-cerium hydrogel are investigated. Powders with a crystal size of 45-100 nm are prepared. Samples having a porosity of less than 2.2% are produced from the powders. It is demonstrated that tetragonal zirconia-based solid solutions Zr1-xCexO2-delta sintered at a temperature of 1500 degrees C possess ionic conductivity in air and in noble gasses. The assumptions are made regarding the mechanisms of ionic (surface anionic) and electronic (hopping) conduction in samples of the 88ZrO(2) center dot 12CeO(2) (mol %) composition. The solid solutions prepared can be used at a temperature of 720 degrees C as high-strength inexpensive solid electrolytes.
引用
收藏
页码：587 / 590
页数：4
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