Study of SrFe12O19 synthesized by the sol-gel method

被引：90

作者：

García-Cerda, LA

Rodríguez-Fernández, OS

Reséndiz-Hernández, PJ

机构：

[1] Ctr Invest Quim Apicada, Saltillo 25100, Coahuila, Mexico

[2] Inst Tecnol Saltillo, Dept Met Mecan, Saltillo 25280, Coahuila, Mexico

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 369卷 / 1-2期

关键词：

sol-gel method; strontium ferrites; magnetically ordered materials; x-ray diffraction; magnetic measurements;

D O I：

10.1016/j.jallcom.2003.09.099

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The sol-gel method was used to prepare SrFe12O19 powders. A solution of water, ethanol, citric acid, ethylene glycol and iron and strontium ions, was polymerized at room temperature by the solvent elimination. The precursor formed was calcined at temperatures from 500 to 900 C in air to obtain the SrFe12O19 phase. The effects of the calcination temperature on the phase composition and the magnetic properties of the products have been investigated. X-ray diffraction (XRD) confirmed the formation of strontium ferrite particles at temperature of 700 C. The maximum coercivity and the saturation magnetization of the strontium ferrite powders were determined by vibrational sample magnetometer (VSM). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：182 / 184

页数：3

共 16 条

[1] Synthesis of ultra-fine particles of strontium hexaferrite by a modified co-precipitation method [J].