Microwave-assisted synthesis of SrFe12O19 hexaferrites

被引：37

作者：

Wang Zhanyong ^{[1
]}

Zhong Liuming ^{[2
]}

Lv Jieli ^{[1
]}

Qian Huichun ^{[1
]}

Zheng Yuli ^{[1
]}

Fang Yongzheng ^{[1
]}

Jin Minglin ^{[1
]}

Xu Jiayue ^{[1
]}

机构：

[1] Shanghai Inst Technol, Sch Mat Sci & Engn, Shanghai 200235, Peoples R China

[2] Shanghai Univ, Inst Mat, Shanghai 200072, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 18期

关键词：

Magnetic material; Sol-gel preparation; Self-combustion; SrFe12O19; Microwave calcination;

D O I：

10.1016/j.jmmm.2010.04.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ultra-fine and homogeneous SrFe12O19 hexaferrites were synthesized by a microwave-assisted calcination route. The calcined precursors were prepared by a sol-gel auto-combustion method using Fe(NO3)(3)center dot 9H(2)O, Sr(NO3)(2) and citric acid as starting materials. The structures, powder morphology and magnetic properties of the products were characterized by X-ray diffraction, scanning electron microscope and vibrating sample magnetometer . The results showed that microwaves are helpful to reduce the calcination temperature and shorten the calcination time. The ferrites with saturation magnetization, remanence and intrinsic coercivity of 54.80 emu/g, 29.52 emu/g and 5261Oe, respectively, were obtained in samples calcined at 800 degrees C for 80 min. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2782 / 2785

页数：4

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