Synthesis and magnetic properties of zinc ferrite from mechanochemical and thermal treatments of Zn-Fe3O4 mixtures

被引：17

作者：

Botta, PM

Bercoff, PG

Aglietti, EF

Bertorello, HR

López, JMP

机构：

[1] INTEMA, Inst Invest Ciencia & Tecnol Mat, Mar Del Plata, Argentina

[2] UNC, Grp Ciencia Mat, FaMAF, RA-5000 Cordoba, Argentina

[3] CETMIC, Ctr Tecnol Recursos Minerales & Ceram, RA-1897 Manuel B Gonnet, Argentina

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 360卷 / 1-2期

关键词：

magnetic materials; ferrites; mechanochemistry; mechanical activation;

D O I：

10.1016/S0921-5093(03)00412-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The preparation of ZnFe2O4 from mechanochemically activated reactive mixtures Zn-Fe3O4 is studied. The physicochemical and structural evolution of the system is analyzed by X-ray diffraction, vibrating sample magnetometry, differential thermal analysis and scanning electron microscopy. The activated mixtures reacted towards the formation of ZnFe2O4 at lower temperatures than the non-activated ones. In addition, thermal treatments as a function of time revealed a non-expected magnetic behavior of some mixtures. In order to interpret this observation, a qualitative diffusional reaction model is proposed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：146 / 152

页数：7

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