Sol-gel auto-combustion synthesis and properties of Co2Z-type hexagonal ferrite ultrafine powders

被引：10

作者：

Liu, Junliang ^{[1
]}

Yang, Min ^{[1
]}

Wang, Shengyun ^{[1
]}

Lv, Jingqing ^{[1
]}

Li, Yuqing ^{[2
]}

Zhang, Ming ^{[1
]}

机构：

[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China

[2] Yangzhou Univ, Testing Ctr, Yangzhou 225009, Jiangsu, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 454卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Z-type hexa-ferrite; Sol-gel auto-combustion; Magnetic properties; MAGNETIC-PROPERTIES; PERMEABILITY; HEXAFERRITES; SUBSTITUTION; SPECTRA;

D O I：

10.1016/j.jmmm.2018.01.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Z-type hexagonal ferrite ultrafine powders with chemical formulations of (BaxSr1-x)(3)Co2Fe24O41 (x varied from 0.0 to 1.0) have been synthesized by a sol-gel auto-combustion technique. The average particle sizes of the synthesized powders ranged from 2 to 5 mu m. The partial substitution of Ba2+ by Sr2+ led to the shrinkage of the crystal lattices and resulted in changes in the magnetic sub-lattices, which tailored the static and dynamic magnetic properties of the as-synthesized powders. As the substitution ratio of Ba2+ by Sr2+, the saturation magnetization of the synthesized powders almost consistently increased from 43.3 to 56.1 emu/g, while the real part of permeability approached to a relatively high value about 2.2 owing to the balance of the saturation magnetization and magnetic anisotropy field. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：1 / 5

页数：5

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