Evidence for a non-rhombohedral average structure in the lead-free piezoelectric material Na0.5Bi0.5TiO3

被引：223

作者：

Gorfman, S. ^{[1
]}

Thomas, P. A. ^{[1
]}

机构：

[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2010年 / 43卷

基金：

英国工程与自然科学研究理事会;

关键词：

sodium bismuth titanate; lead-free piezoelectric materials; SODIUM BISMUTH TITANATE; PHASE-TRANSITIONS; CERAMICS;

D O I：

10.1107/S002188981003342X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The potential lead-free piezoelectric material sodium bismuth titanate, Na0.5Bi0.5TiO3, was investigated by means of high-resolution single-crystal X-ray diffractometry. The splitting of Bragg peaks observed in the high-resolution reciprocal-space maps suggests that the average structure of Na0.5Bi0.5TiO3 has lower than rhombohedral symmetry. This observation is contrary to the commonly adopted model, which has followed from many previous analyses of neutron and X-ray powder diffraction data.

引用

页码：1409 / 1414

页数：6

共 20 条

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