Synthesis of bismuth ferrite lead titanate nano-powders and ceramics using chemical co-precipitation

被引：28

作者：

Comyn, Tim P. ^{[1
]}

Kanguwe, David F. ^{[1
]}

He, Jingyan ^{[1
]}

Brown, Andrew P. ^{[1
]}

机构：

[1] Univ Leeds, Inst Mat Res, Leeds LS2 9JT, W Yorkshire, England

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2008年 / 28卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

powders-chemical preparation; electron microscopy; X-ray methods; dielectric properties; BiFeO3-PbTiO3;

D O I：

10.1016/j.jeurceramsoc.2008.02.013

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：

The high temperature ferroelectric material BiFeO3-PbTiO3 was fabricated via chemical co-precipitation using Bi(NO3)(3)center dot(H2O)(5), Fe(NO3)(3)center dot(H2O)(9), Pb(NO3)(2) and TiI4 as precursors. The prepared composition was close to the target composition, as determined by XRF and EDX. Calcination at 800 degrees C yielded a single phase powder, with a primary particle size in the range 20-75 nm, and were single crystallites, as determined using TEM. Pellets fabricated from the powder were sintered to a maximum density at 950 degrees C, some 65-75 degrees C lower than using a conventional mixed oxide route, and had a density of 95% of theoretical. The sintered pellets had a relative permittivity of 190 compared to 280 for conventionally prepared materials. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2233 / 2238

页数：6

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