Title :
Analysis of the permeability spectra of Fe-Al-Si granular composite materials
Author :
Tsutaoka, Takanori ; Kinoshita, Hideaki ; Yamamoto, Shinichiro ; Hatakeyama, Kenichi ; Kasagi, Teruhiro ; Koledintseva, Marina Y.
Author_Institution :
Grad. Sch. of Educ., Hiroshima Univ., Higashi-Hiroshima, Japan
Abstract :
High-frequency permeability spectra of Sendust (Fe-Al-Si alloy) granular composite materials have been studied by the numerical analysis using magnetic resonance formulas The relaxation type frequency dispersion characteristics of permeability were obtained for Sendust composite material. Sendust composite shows insulating property for the particle content up to at least 60 vol.%, indicating that the embedded Sendust particles have high surface electrical resistivity. Thus the eddy current effect can be neglected over the microwave frequency range.
Keywords :
aluminium alloys; composite materials; electrical resistivity; granular materials; iron alloys; magnetic permeability; magnetic resonance; numerical analysis; silicon alloys; surface resistance; FeAlSi; Sendust granular composite materials; eddy current effect; high-frequency permeability spectra; insulating property; magnetic resonance formulas; numerical analysis; relaxation type frequency dispersion characteristics; surface electrical resistivity; Composite materials; Conductivity; Dispersion; Magnetic susceptibility; Metals; Permeability; Resonant frequency; Sendust; granular composite; permeability dispersion formula; permeability spectra;
Conference_Titel :
Electromagnetic Compatibility, Tokyo (EMC'14/Tokyo), 2014 International Symposium on
Conference_Location :
Tokyo
