Sintering kinetic of Bi4Ti3O12 based ceramics

被引：16

作者：

Jardiel, T. ^{[1
]}

Caballero, A. C. ^{[1
]}

Villegas, M. ^{[1
]}

机构：

[1] CSIC, Inst Ceram & Vidrio, Dept Electroceram, Madrid 28049, Spain

来源：

BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO | 2006年 / 45卷 / 03期

关键词：

bismuth titanate; densification; sintering kinetic;

D O I：

10.3989/cyv.2006.v45.i3.306

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 shrinkage behaviour in based-Bi4Ti3O12 ceramics has been studied by constant heating rate experiments (CHR). Undoped and WO3 doped BIT ceramics were prepared by two different ways: mixed oxide method and hidroxide-based coprecipitation method. Analyses of the initial and intermediate sintering stages were evaluated using different Coble's based models. Sintering behaviour is modified by both, the dopant and the processing method. Powders obtained by the mixed oxide method sintered through a solid state mechanism, while coprecipitated powders sintered with the presence of a small amount of a transitory liquid phase.

引用

页码：202 / 206

页数：5

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