GENESIS OF THE (111) TWIN IN BARIUM-TITANATE

被引：32

作者：

KRASEVEC, V

DROFENIK, M

KOLAR, D

机构：

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 04期

关键词：

barium titanate; crystallography; formation; grain growth; twinning;

D O I：

10.1111/j.1151-2916.1990.tb05125.x

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：

On the basis of the topotaxy between BaTiO3 and Ba6Ti17O40 found recently, a model of a nonconservative (111) twin in TiO2‐rich BaTiO3 was constructed. The model consists of several (001) layers of Ba6Ti17O40 intergrown between (111) layers of BaTiO3, the core of the twin being a slightly modified double layer of Ba6Ti17O40 containing face‐sharing octahedra. Using this model, anomalous grain growth below the eutectic temperature and preferential growth of (111) twins in a reducing atmosphere were explained, as well a nucleation of butterfly twins. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：856 / 860

页数：5

共 21 条

[1] TWINNING ON UNIT-CELL LEVEL AS A STRUCTURE-BUILDING OPERATION IN SOLID-STATE [J].