Complex permittivity, permeability and electromagnetic wave absorption of α-Fe/C(amorphous) and Fe2B/C(amorphous) nanocomposites

Jiu Rong Liu; Masahiro Itoh; Takashi Horikawa; Masaru Itakura; Noriyuki Kuwano; Ken Ichi Machida

doi:10.1088/0022-3727/37/19/019

Complex permittivity, permeability and electromagnetic wave absorption of α-Fe/C(amorphous) and Fe₂B/C(amorphous) nanocomposites

Jiu Rong Liu, Masahiro Itoh, Takashi Horikawa, Masaru Itakura, Noriyuki Kuwano, Ken Ichi Machida

Materials Physics and Engineering

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

The complex permittivity, permeability and electromagnetic (EM) wave absorption properties have been investigated for resin compacts containing 75 wt% composite powders of α-Fe/C(a) and Fe₂B/C(a). The real and imaginary parts (ε_r′ and ε_r″) of relative permittivity for the resin composites remained almost constant in the 0.05-20.05 GHz range. The imaginary part of the relative permeability (μ _r″) exhibited a wide peak in the 1-9 GHz range for a-Fe/C(a) and in the 2-18 GHz range for Fe₂B/C(a). Both resin composites exhibited good EM wave absorption properties (RL < -20 dB) in the 4.4-8.3 GHz range with an absorber thickness of 1.9-3.4 mm, and in the 7.5-16 GHz range for an absorber thickness of 1.2-2.2 mm, respectively.

Original language	English
Pages (from-to)	2737-2741
Number of pages	5
Journal	Journal of Physics D: Applied Physics
Volume	37
Issue number	19
DOIs	https://doi.org/10.1088/0022-3727/37/19/019
Publication status	Published - Oct 7 2004

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/0022-3727/37/19/019

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title = "Complex permittivity, permeability and electromagnetic wave absorption of α-Fe/C(amorphous) and Fe2B/C(amorphous) nanocomposites",

abstract = "The complex permittivity, permeability and electromagnetic (EM) wave absorption properties have been investigated for resin compacts containing 75 wt% composite powders of α-Fe/C(a) and Fe2B/C(a). The real and imaginary parts (εr′ and εr″) of relative permittivity for the resin composites remained almost constant in the 0.05-20.05 GHz range. The imaginary part of the relative permeability (μ r″) exhibited a wide peak in the 1-9 GHz range for a-Fe/C(a) and in the 2-18 GHz range for Fe2B/C(a). Both resin composites exhibited good EM wave absorption properties (RL < -20 dB) in the 4.4-8.3 GHz range with an absorber thickness of 1.9-3.4 mm, and in the 7.5-16 GHz range for an absorber thickness of 1.2-2.2 mm, respectively.",

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T1 - Complex permittivity, permeability and electromagnetic wave absorption of α-Fe/C(amorphous) and Fe2B/C(amorphous) nanocomposites

AU - Liu, Jiu Rong

AU - Itoh, Masahiro

AU - Horikawa, Takashi

AU - Itakura, Masaru

AU - Kuwano, Noriyuki

AU - Machida, Ken Ichi

PY - 2004/10/7

Y1 - 2004/10/7

N2 - The complex permittivity, permeability and electromagnetic (EM) wave absorption properties have been investigated for resin compacts containing 75 wt% composite powders of α-Fe/C(a) and Fe2B/C(a). The real and imaginary parts (εr′ and εr″) of relative permittivity for the resin composites remained almost constant in the 0.05-20.05 GHz range. The imaginary part of the relative permeability (μ r″) exhibited a wide peak in the 1-9 GHz range for a-Fe/C(a) and in the 2-18 GHz range for Fe2B/C(a). Both resin composites exhibited good EM wave absorption properties (RL < -20 dB) in the 4.4-8.3 GHz range with an absorber thickness of 1.9-3.4 mm, and in the 7.5-16 GHz range for an absorber thickness of 1.2-2.2 mm, respectively.

AB - The complex permittivity, permeability and electromagnetic (EM) wave absorption properties have been investigated for resin compacts containing 75 wt% composite powders of α-Fe/C(a) and Fe2B/C(a). The real and imaginary parts (εr′ and εr″) of relative permittivity for the resin composites remained almost constant in the 0.05-20.05 GHz range. The imaginary part of the relative permeability (μ r″) exhibited a wide peak in the 1-9 GHz range for a-Fe/C(a) and in the 2-18 GHz range for Fe2B/C(a). Both resin composites exhibited good EM wave absorption properties (RL < -20 dB) in the 4.4-8.3 GHz range with an absorber thickness of 1.9-3.4 mm, and in the 7.5-16 GHz range for an absorber thickness of 1.2-2.2 mm, respectively.

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Complex permittivity, permeability and electromagnetic wave absorption of α-Fe/C(amorphous) and Fe₂B/C(amorphous) nanocomposites

Abstract

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