Development of a composite material with high magnetic permeability and low loss factor for high frequency application

被引：2
|
作者：
Roy, Debangsu [1 ]
Kumar, P. S. Anil [1 ]
机构：
[1] Indian Inst Sci, Dept Phys, Bangalore 12, Karnataka, India
来源：
JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 07期
关键词：
NI-ZN FERRITE; SPINEL FERRITES; FE3O4; PARTICLES; MAGNETORESISTANCE; DEPENDENCE; DISPERSION;
D O I：
10.1063/1.3672867
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A flexible composite suitable for MHz frequency application has been developed by combining Fe3O4 and polyvinyl alcohol (PVA). The loss factor and the permeability have been evaluated. At an optimum weight percentage of Fe3O4 in the PVA matrix, the frequency at which the loss factor gives a minimum shifts to the MHz region. The loss factor has been found to be lower by one order of magnitude at 70 MHz compared to the presently used nickel zinc ferrite. The Henkel plot and the Cole-Cole plot have been obtained for the understanding of the high magnetic permeability and the low loss factor. (C) 2012 American Institute of Physics. [doi:10.1063/1.3672867]
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页数：3
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