AC permeability of Fe-Co-Ge/WC/phenol magnetostrictive composites

Kwang Ho Shin, Younghak Kim, Sang Ho Lim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Polymer-bonded magnetostrictive composites of flake-type Fe-Co-Ge powder were fabricated and their complex permeability were characterized in the frequency range of 100-100 kHz using the modified ferrite core method. This alternating current (ac) permeability measurement method is firstly proposed in this study, and has some merits, such as easy handling and stress-free measuring. The WC powder, as a highly elastic material, with various amount of 0 wt%-30 wt% was added to form magnetostrictive composite to investigate high-frequency magnetic properties with measured permeability. The real part of permeability is almost constant with frequency varying. Also, the imaginary part of permeability increases exponentially with frequency increase. Both real and imaginary parts of permeability decrease with WC content increase to 20 wt%, but the composite of 30 wt% WC has larger permeability than that of 20 wt%.

Original languageEnglish
Pages (from-to)2784-2786
Number of pages3
JournalIEEE Transactions on Magnetics
Volume41
Issue number10
DOIs
Publication statusPublished - 2005 Oct 1

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Phenol
phenols
Phenols
alternating current
permeability
Powders
composite materials
Composite materials
Ferrite
Magnetic properties
Polymers
flakes
ferrites
frequency ranges
magnetic properties
polymers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

AC permeability of Fe-Co-Ge/WC/phenol magnetostrictive composites. / Shin, Kwang Ho; Kim, Younghak; Lim, Sang Ho.

In: IEEE Transactions on Magnetics, Vol. 41, No. 10, 01.10.2005, p. 2784-2786.

Research output: Contribution to journalArticle

Shin, Kwang Ho ; Kim, Younghak ; Lim, Sang Ho. / AC permeability of Fe-Co-Ge/WC/phenol magnetostrictive composites. In: IEEE Transactions on Magnetics. 2005 ; Vol. 41, No. 10. pp. 2784-2786.
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