Synthesis and electrical properties of mixed-layer Aurivillius phases

被引：17

作者：

Kharitonova, E. P. ^{[1
]}

Voronkova, V. I. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119992, Russia

来源：

INORGANIC MATERIALS | 2007年 / 43卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/S0020168507120175

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polycrystalline samples of the mixed-layer Aurivillius phases Bi10Ti3W3O30, Bi7Ti4NbO21, Bi7Ti4TaO21, SrBi6Ti3Nb2O21, BaBi6Ti3Nb2O21, SrBi8Ti7O27, and BaBi8Ti7O27 (ferroelectrics with high oxygen-ion conductivity) have been prepared by solid-state reactions, and their electrical properties have been studied. All of the compounds undergo a second-order ferroelectric phase transition at temperatures from 500 to 800 degrees C and have high electrical conductivity. Of particular interest is the compound Bi10Ti3W3O30, whose conductivity exceeds that of the other mixed-layer Aurivillius phases by more than one order of magnitude and reaches 5 x 10(-2) S/cm at 800 degrees C.

引用

页码：1340 / 1344

页数：5

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