Structural and dielectric studies of the Na0.5Bi0.5TiO3-BiFeO3 system

被引：68

作者：

Dorcet, V. ^{[1
]}

Marchet, P. ^{[1
]}

Trolliard, G. ^{[1
]}

机构：

[1] Univ Limoges, CNRS, UMR 6638, SPCTS, F-87060 Limoges, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2007年 / 27卷 / 13-15期

关键词：

dielectric properties; perovskite; electron microscopy; relaxor materials;

D O I：

10.1016/j.jeurceramsoc.2007.02.173

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：

Solid solutions (1-x)NBT-xBF, between rhombohedral compounds Na0.5Bi0.5TiO3 (NBT) and BiFeO3 (BF) were studied and a continuous R3c solid solution was evidenced. Lattice parameters and rhombohedral distortion evolution with BF content were studied. The "a" pseudo-cubic parameter (a(p)) increases linearly with BF rate, as the "alpha" pseudo-cubic one (alpha(p)) presents a more complex behaviour. The study of the dielectric properties evidenced two different ranges, with a limit composition around 50% of BF. TEM studies of the reciprocal space showed that the relaxer behaviour of NBT-rich samples is correlated both with superstructure spots and diffusion rows along some particular directions. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4371 / 4374

页数：4

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