Kinetic study of conventional solid-state synthesis of BaTiO3 by in situ HT-XRD

被引：6

作者：

Bondioli, F ^{[1
]}

Corradi, AB ^{[1
]}

Ferrari, AM ^{[1
]}

Manfredini, T ^{[1
]}

Pellacani, GC ^{[1
]}

机构：

[1] Univ Modena, Fac Engn, Dept Chem, I-41100 Modena, Italy

来源：

EPDIC 5, PTS 1 AND 2 | 1998年 / 278-2卷

关键词：

BaTiO3; solid state synthesis; kinetics;

D O I：

10.4028/www.scientific.net/MSF.278-281.379

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The reaction path for the solid state synthesis of barium titanate, from barium carbonate and anatase, was first identified. In this work, plots of f(alpha) versus time, where alpha is the reacted fraction, were used to distinguish the reaction mechanisms of BaTiO3 formation by using an KT-XRD (high temperature x-ray diffraction) technique. On the basis of kinetic analysis, an overall process with two distinct regimes was proposed: for the first regime nucleation and growth are the dominant processes, while diffusion controls the second one. The reaction rates of both the processes were also determined.

引用

页码：379 / 383

页数：5