Hydrothermal synthesis of Na0.5Bi0.5TiO3 fine powders

被引：72

作者：

Jing, XZ ^{[1
]}

Li, YX ^{[1
]}

Yin, QG ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2003年 / 99卷 / 1-3期

关键词：

hydrothermal synthesis; lead-free; piezoelectric ceramic; bismuth sodium titanate;

D O I：

10.1016/S0921-5107(02)00515-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of processing parameters on the growth and morphology of hydrothermally derived Na0.5Bi0.5TiO3 (BNT) powders were investigated. The BNT powders were synthesized in alkaline solution at temperatures of 160-220 degreesC from Ti(OC4H9)(4) and Bi(NO3)(3).5H(2)O compounds. Alkaline concentration had a great effect on the phase composition and morphology of the resultant powders. BNT phase was not obtained with NaOH concentrations lower than 0.5 or higher than 14 M. The morphology of BNT powders changed from spherical agglomerates to uniform cubic particles with NaOH concentrations in the range 2-12 M. The sizes of the cubic particles were about 3.5-5.5 mum with a typical Na0.5Bi0.5TiO3 structure. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：506 / 510

页数：5

共 11 条

[1] SOME PROPERTIES OF BISMUTH PEROVSKITES [J].