Inner demagnetization factor in polymer-bonded soft magnetic composites

被引：54
作者：
Anhalt, M. [1 ]
Weidenfeller, B. [1 ]
Mattei, J. -L. [2 ]
机构：
[1] Tech Univ Clausthal, Fac Nat & Mat Sci, D-38678 Clausthal Zellerfeld, Germany
[2] CNRS, UMR 6616, UFR Sci, Lab Elect & Syst Telecommun, F-29238 Brest, France
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 20期
关键词：
soft magnetic composites; demagnetization factor; effective medium theory;
D O I：
10.1016/j.jmmm.2008.04.061
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The inner demagnetization factor N-i of polymer-bonded soft magnetic composites (PBSMC) varying in filler material and filler content C was measured, using a computer-controlled measurement system. For all materials the results show a decrease from an inner demagnetization factor close to the demagnetization factor of a single particle to N-i approximate to 0 on increasing the magnetic content C. Measurement data of a selected material were compared with a model derived from an effective medium theory using the composite's effective susceptibility and show superb accordance. (C) 2008 Elsevier B.V. All rights reserved.
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页码：E844 / E848
页数：5
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