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 language | English |
|---|---|
| Pages (from-to) | 2784-2786 |
| Number of pages | 3 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 41 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2005 Oct 1 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
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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 journal › Article
}
TY - JOUR
T1 - AC permeability of Fe-Co-Ge/WC/phenol magnetostrictive composites
AU - Shin, Kwang Ho
AU - Kim, Younghak
AU - Lim, Sang Ho
PY - 2005/10/1
Y1 - 2005/10/1
N2 - 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%.
AB - 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%.
KW - Alternating current (ac) permeability
KW - Magnetostrictive composite
KW - Stress-free measurement
UR - http://www.scopus.com/inward/record.url?scp=27744537749&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27744537749&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2005.854769
DO - 10.1109/TMAG.2005.854769
M3 - Article
AN - SCOPUS:27744537749
VL - 41
SP - 2784
EP - 2786
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 10
ER -