Phase transformation and the mechanism of combustion synthesis of ZnFe2O4 ferrite powders

被引：10

作者：

Li, Y ^{[1
]}

Zhao, JP

Jiang, JX

Han, JC

机构：

[1] Harbin Inst Technol, Ctr Composite Mat, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 08期

基金：

中国博士后科学基金;

关键词：

oxides; Mossbauer spectroscopy; X-ray diffraction; phase transaction; microstructure;

D O I：

10.1016/S0025-5408(03)00152-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The reaction mechanism of combustion synthesis of zinc ferrite, which belongs to the complex oxide combustion reaction was investigated using a combustion front quenching method (CFQM). Phase transformation and microstructural evolution of the quenched samples were observed by XRD, SEM, and Mossbauer spectroscopy. The results showed that the combustion proceeded by a dissolution-precipitation mechanism, viz the iron was burned to form Fe2O3 in an oxygen atmosphere and melting of the Fe2O3 led to the dissolving of the ZnO particles, then ZnFe2O4 precipitated out. In addition, a model of the mechanism was drawn. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1393 / 1399

页数：7

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