Microwave behavior of ferrites prepared via sol-gel method

被引：159
|
作者：
Giannakopoulou, T [1 ]
Kompotiatis, L [1 ]
Kontogeorgakos, A [1 ]
Kordas, G [1 ]
机构：
[1] NCSR Demokritos, Inst Mat Sci, Athens 15310, Greece
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 246卷 / 03期
关键词：
ferrites; sol-gel; annealing temperature; microwave absorption; matching frequency;
D O I：
10.1016/S0304-8853(02)00106-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni-ferrites were prepared at different temperatures via sol-gel method. The electromagnetic properties of these materials, namely permittivity and permeability were measured in the 0.1-13 GHz frequency range. Following a mathematical procedure, microwave absorption diagrams were constructed including the dependence of the microwave absorption of ferrite layer on microwave frequency and layer thickness. The permeability spectra broaden and the microwave absorption improves at 9-10 GHz with increase of annealing temperature. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码：360 / 365
页数：6
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