Cation ordering in the microwave dielectric ceramic BaCd1/3Nb2/3O3

被引：13

作者：

Deng, Jinxia ^{[1
]}

Xing, Xianran ^{[1
]}

Chen, Jun ^{[1
]}

Yu, Ranbo ^{[1
]}

Liu, Guirong ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Chem Phys, Beijing 100083, Peoples R China

来源：

SCRIPTA MATERIALIA | 2007年 / 56卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ordering; Rietveld refinement; X-ray diffraction (XRD); high-resolution transmission electron microscopy (HRTEM);

D O I：

10.1016/j.scriptamat.2006.08.055

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The crystal structures of the perovskite ceramic Ba(Cd(1/3)Nb(2/3))O(3) prepared by the molten salt method have been studied. The X-ray Rietveld method and selected-area electron diffraction apparently show an ordered trigonal structure. Furthermore Ba(Cd(1/3)Nb(2/3))O(3) exhibits a large perturbation away from the totally ordered structure and the ordering degree determined by the variations of the occupancies of Cd(2+) and Nb(5+) cations in B'/B" sites is 0.443. (c) 2006 Published by Elsevier Ltd. on behalf of Acta Materialia, Inc.

引用

页码：65 / 68

页数：4

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