Microwave absorbing properties of FeB/B4C nanowire composite

Microwave absorbing properties of FeB/B4C nanowire composite
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FeB/B4C纳米线复合材料的微波吸收性能

DOI:
10.1016/j.ceramint.2019.10.052
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发表时间:
2020-02
影响因子:
5.2
通讯作者:
Peng Liu
Peng Liu
中科院分区:
材料科学1区
文献类型:
--
作者:
Wen-Wen Wu;Yuan Liu;Quan Zhou;Li-Na Liu;Xiao-Ming Chen;Peng Liu

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采用催化辅助工艺合成了新型的FeB/B4C纳米线复合材料。结果表明:该复合材料主要含有粒径在100 nm以下的B4C纳米线和粒径在~50 nm的FeB纳米线;当厚度为3.5 mm时,FeB/B4C纳米线-石蜡复合材料在8.2 GHz处的反射损耗值达到−13.6 dB ,RL低于−10 dB时的吸收带宽达到1.6 GHz(7.5-9.1 GHz)。当厚度为4.8 mm时,在17.4 GHz处的最小RL值达到−50.8 dB ,吸收带宽增加到2.4 GHz(15.6 ~ 18.0 GHz)。研究了复合材料的电磁参数,以了解其优异的吸波性能。
Novel FeB/B4C nanowire composite was synthesized by a catalyst-assisted process. The results showed that the composite contains mainly B4C nanowires with diameters under 100 nm and FeB nanoparticles with a size of ~50 nm. Reflection loss value of the FeB/B4C nanowire-paraffin composite reaches −13.6 dB at 8.2 GHz when the thickness is 3.5 mm, and absorption bandwidth with RL below −10 dB reaches 1.6 GHz (7.5–9.1 GHz). The minimum RL value reaches −50.8 dB at 17.4 GHz when the thickness is 4.8 mm, with the absorption bandwidth increased to 2.4 GHz (15.6–18.0 GHz). Electromagnetic parameters of the composite were studied to understand its excellent microwave absorbing properties.
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发表时间: 2019-05-01
影响因子: 9.5
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