期刊
JOURNAL OF APPLIED PHYSICS
卷 93, 期 8, 页码 4784-4787出版社
AMER INST PHYSICS
DOI: 10.1063/1.1561992
关键词
-
The domain structures of Bi3TiTaO9 (BTT) and SrBi2Ta2O9 (SBT) ceramics, which have the same crystalline structure but different fatigue properties, were studied by transmission electron microscopy. Antiphase boundaries and 90degrees domain walls in BTT ceramics were confirmed by the dark-field image taken with (031) superlattice reflection and selected area diffraction patterns, respectively. In contrast to SBT, 90degrees ferroelectric domains in BTT display a high, flat morphology and less density. Additionally, a type of planar defects normal to the c axis, which has not been found in SBT, was observed. The origin of different domain structures is discussed. The mechanism of fatigue behavior related to 90degrees domains is also proposed. (C) 2003 American Institute of Physics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据