Complex permittivity, permeability and electromagnetic wave absorption of α-Fe/C(amorphous) and Fe2B/C(amorphous) nanocomposites
Complex permittivity, permeability and electromagnetic wave absorption of α-Fe/C(amorphous) and Fe2B/C(amorphous) nanocomposites
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DOI：
10.1088/0022-3727/37/19/019
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发表时间：
2004-10
期刊：
影响因子：
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通讯作者：
Jiurong Liu;M. Itoh;T. Horikawa;M. Itakura;N. Kuwano;K. Machida
中科院分区：
文献类型：
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作者：
Jiurong Liu;M. Itoh;T. Horikawa;M. Itakura;N. Kuwano;K. Machida
研究了含75wt% α-Fe/C（a）和Fe_2B/C（a）复合粉末的树脂压坯的复介电常数、复磁导率和电磁波吸收性能。树脂复合材料的相对介电常数的真实的和虚部（和er '）在0.05-20.05 GHz范围内几乎保持恒定。α-Fe/C（a）和Fe_2B/C（a）的相对磁导率虚部（μ r '）分别在1-9 GHz和2-18 GHz范围内出现宽峰。这两种树脂复合材料分别在4.4-8.3 GHz范围内具有1.9-3.4 mm的吸收体厚度和在7.5-16 GHz范围内具有1.2-2.2 mm的吸收体厚度时表现出良好的EM波吸收特性（RL <-20 dB）。
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 ( and er') 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 (μr') exhibited a wide peak in the 1–9 GHz range for α-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.