...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Crystallography >Ferroelectric domains in PZT ceramics at the morphotropic phase boundary. Can the splitting of reflections in SAED patterns be used for the distinction of different pseudo-cubic phases?
【24h】

Ferroelectric domains in PZT ceramics at the morphotropic phase boundary. Can the splitting of reflections in SAED patterns be used for the distinction of different pseudo-cubic phases?

机译：PZT陶瓷在同相相界处的铁电畴。 SAED模式中的反射分裂可以用于区分不同的伪三次相吗？

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Tetragonal, rhombohedral and monoclinic ferroelectric domains can all occur in morphotropic PbZr1-x Ti x O3 (PZT) ceramics. In this article, the influence of these domains on the splitting of reflections in selected area electron diffraction (SAED) patterns along the main pseudo-cubic zone axes is reported. The orientation of the domain wall in a transmission electron microscopy image with respect to the splitting of reflections in the diffraction pattern has to be considered for the interpretation. The distinction of tetragonal and rhombohedral splitting is achieved for a pronounced splitting except for 111 with the domain wall edge on. As the monoclinic structure contains tetragonal as well as rhombohedral distortions, the distinction of monoclinic symmetry from tetragonal and rhombohedral based only on the splitting of reflections is not possible. Conceivable models of configurations of monoclinic subdomains inside the existing tetragonal or rhombohedral microdomains are derived from group-subgroup relations. Some experimental observations are given, which can only be explained by these models.
机译：四方，菱形和单斜铁电畴都可以出现在同晶的PbZr1-x Ti x O3（PZT）陶瓷中。在本文中，报告了这些域对沿主要伪立方区域轴的选定区域电子衍射（SAED）模式中的反射分裂的影响。为了解释，必须考虑透射电子显微镜图像中的畴壁相对于衍射图案中的反射分裂的取向。对于四边形和菱面体分裂，可以实现明显的分裂，但111畴壁边缘处于打开状态。由于单斜晶结构包含四角形和菱面体形畸变，因此不可能仅基于反射的分离将单斜晶对称性与四角形和菱形面体区分开。现有的四边形或菱面体微域内部的单斜亚域构型的模型可以从组-亚组关系中得出。给出了一些实验观察，只能由这些模型来解释。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号