Influence of particle size on electromagnetic behavior and microwave absorption properties of Z-type Ba-ferrite/polymer composites

被引:93
作者
Li, B. W. [1 ]
Shen, Y. [1 ]
Yue, Z. X. [1 ]
Nan, C. W. [1 ]
机构
[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
dielectric properties; magnetic properties; microwave absorption; Z-type barium ferrite; composites;
D O I
10.1016/j.jmmm.2007.01.017
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electromagnetic and microwave absorption properties of the Z-type Ba-ferrite/polymer composites were investigated. The results showed that particle size of the Ba-ferrite fillers has a significant influence on the effective properties of the two-phase composites. The relative dielectric constant and initial permeability of such composites are about 95 and 5.2 at high frequency under certain combination of ferrite fillers with different particle size, respectively. Microwave absorption properties of the composites are simultaneously influenced due to the strong correlation between reflection loss and electromagnetic parameters of the ferrite/polymer composites. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:322 / 328
页数:7
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