Permeability and electromagnetic wave absorption properties of sintered barium hexaferrites with substitution of Co2+-Zr4+

被引：11

作者：

Cheng, Yankui ^{[1
]}

Ren, Xiaohu ^{[2
]}

机构：

[1] Yibin Vocat & Tech Coll, Dept Modern Mfg, Yibin 644003, Peoples R China

[2] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 01期

关键词：

COMPLEX PERMITTIVITY; HEXAGONAL FERRITES; MICROWAVE ABSORBER; PARTICLE-SIZE; BAND; COMPOSITES; LA3+;

D O I：

10.1007/s10854-015-3815-4

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The Co2+-Zr4+ substituted M-type barium hexaferrites with the chemical formula BaCoxZrxFe12-2xO19 (x = 0.0, 0.3, 0.6, 0.9 and 1.2) were synthesized by a sol-gel auto-combustion method. The structural characterizations of the prepared samples were studied using X-ray diffraction and scanning electron microscopy. The complex permeability (mu = mu' - j mu aEuro(3)) was measured on sintered samples in the frequency range of 100 MHz-3 GHz, and the electromagnetic wave absorbing characteristics of the prepared ferrites with various x value were evaluated from measurements of complex permeability. The results showed that the value of mu and the resonance frequency can be justified by controlling the substituting contents of Co2+-Zr4+. The reflection loss calculations showed that Co2+-Zr4+ substituted barium hexaferrites are good EM-wave absorbers in the quasi-microwave band (1-3 GHz).

引用

页码：772 / 775

页数：4

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