The low-temperature synthesis of BiFeO3-SrBi2Nb2O9 complexes by sol-gel process

被引：3

作者：

Gu, HS ^{[1
]}

Zheng, KH

Chen, KS

Cao, WQ

Wang, J

机构：

[1] Hubei Univ, Fac Phys & Elect Technol, Wuhan 430062, Peoples R China

[2] Natl Univ Singapore, Fac Sci, Dept Mat Sci, Singapore 119260, Singapore

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 8-9期

关键词：

0.1BiFeO(3)-0.9SrBi(2)Nb(2)O(9); nanocrystalline; sol-gel;

D O I：

10.1016/j.matlet.2004.09.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline 0.1 BiFeO3-0.9SrBi(2)Nb(2)O(9) powder was successfully synthesized by a ethanolamine-modi fled sol-gel technique from compounds, Bi(No-3)(3) (.) 5H(2)O, Sr(NO3)(2), Fe(NO3)(3) (.) 9H(2)O and Nb(OC2H5)(5) in solution ethylene glycol monomethyl ether. The powder exhibited amorphous in structure below annealing temperature 400 degreesC and a pure phase of layered perovskite ferroelectric structure at annealing temperature 600 degreesC. There was a considerable degree of particle coalescence when the xerogel was heated at 400 degreesC. The grains exhibited spherical shape distribution, and the average particle size of powder was in the range 50-100 nm after annealing at 700 degreesC. The ceramics exhibited a dense fracture surface consisting of lamellar grains. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：912 / 915

页数：4

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