TEM study of a fluorite-type (1-x)Bi2O3•xFe2O3 superstructure in BiFeO3 ceramics synthesized by the rapid liquid-phase sintering method

被引：12

作者：

Guo, Chao ^{[1
,2
]}

Pu, Shizhou ^{[1
,2
]}

Chen, Zhenlian ^{[1
]}

Li, Meiya ^{[1
]}

Cao, Jiefeng ^{[1
]}

Zou, Huamin ^{[1
,2
]}

机构：

[1] Wuhan Univ, Dept Phys, Minist Educ, Key Lab Acoust & Photon Mat & Device, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Ctr Electron Microscopy, Wuhan 430072, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2010年 / 36卷 / 02期

关键词：

Sintering; Electron microscopy; Microstructure; Ferroelectric; ELECTRON-DIFFRACTION; BI2O3-NB2O5;

D O I：

10.1016/j.ceramint.2009.09.023

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：

A commensurate modulated structure of (1 - x)Bi2O3 center dot xFe(2)O(3) is found in the BiFeO3 ceramics synthesized by the rapid liquid-phase sintering method. Transmission electron microscopy studies show that the superstructure is based on fluorite-type delta-Bi2O3 and modulated probably by oxygen vacancy ordering. The existence of such a superstructure may increase the leakage current of BiFeO3 ceramics. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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收藏

页码：507 / 512

页数：6

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