Polytype structures in lead-calcium titanate ceramics

被引：0
|
作者：
Fang, F
Zhang, XW
机构：
[1] Dept. of Mat. Sci. and Engineering, Tsinghua University
来源：
MATERIALS LETTERS | 1996年 / 27卷 / 03期
关键词：
(Pb0.5Ca0.5)TiO3; ceramics; polytype structures; modulation structure; lattice image; ordered structure;
D O I：
10.1016/0167-577X(95)00272-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High resolution transmission electron microscopy (HRTEM) was used to investigate the ion ordering structures of lead-calcium titanate (Pb0.5Ca0.5)TiO3. The results show that apart from the presence of 1/2{111}, 1/2{110} and 1/2{100} superstructures, there is a 1/4{110} modulation structure coexisting in (Pb0.5Ca0.5)TiO3. The characteristics of the 1/4{110} modulation structure were determined at the lattice level. Probable arrangements of the atoms in the atomic layers in the modulation structure were suggested.
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页码：107 / 110
页数：4
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