StructureandPropertiesofMg-dopedSrBi4Ti4O15Bi-layeredCompounds

被引：0

作者：

郝华 ^{[1
,2
]}

机构：

[1] School of Materials Science and Engineering, Wuhan University of Technology

[2] State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology

来源：

JournalofWuhanUniversityofTechnology(MaterialsScienceEdition) | 2008年 / 05期

关键词：

Mg-doped; bismuth layer structure ferroelectrics; ferroelectric properties;

D O I：

暂无

中图分类号：

TG146.22 [];

学科分类号：

080502 ;

摘要：

The structure and properties of Mg-doped SrBi4Ti4O15(SBT) were dicussed. Mg substitution into SBT had two possibilities states with the dopant amount variety. Mg cation substituted mostly into Sr2+ and the amount proportion was 68.11 %.Mg ion will substitute into Ti ion site in perovskite layer when the doping amount increases. Polarization increases sharply when x=0.1 and then decreases becauses of the domain pinning. The Curie temperature of Mg-doped SBT is about 300 ℃ and there is a broad diffuse phase transition near Tc with a flat peak near the Ta of SBT.

引用

页码：675 / 677

页数：3