Nanolayered flaky Fe-based amorphous-nanocrystalline/graphite sheet composites with enhanced microwave absorbing properties

Nanolayered flaky Fe-based amorphous-nanocrystalline/graphite sheet composites with enhanced microwave absorbing properties
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具有增强微波吸收性能的纳米层片状铁基非晶纳米晶/石墨片复合材料

DOI:
10.1016/j.jallcom.2019.05.061
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发表时间:
2019-08
影响因子:
6.2
通讯作者:
Zhang Tao
Zhang Tao
中科院分区:
材料科学2区
文献类型:
--
作者:
Shi Nali;Xu Hongjie;Chen Chen;Wu Yue;Yang Bai;Zhang Tao

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将铁基非晶合金与石墨进行球磨,制备出具有优异吸波性能的纳米层状铁基非晶-纳米晶/石墨片状复合材料。所获得的复合材料由铁基非晶-纳米晶薄片和石墨片涂层组成,表现出良好的阻抗匹配。改性的磁性和介电性能,特别是大的介电常数,高磁导率和界面极化是显著改善微波吸收性能的原因,在1.6 mm的薄厚度和5.36 GHz的带宽下,最小反射损耗为−67.95 dB。这种结构简单、吸波性能优异的复合材料是高性能吸波材料的潜在材料。
Nanolayered flaky Fe-based amorphous-nanocrystalline/graphite sheet composites with excellent microwave absorbing properties are fabricated by ball milling the Fe-based amorphous alloy and graphite. The obtained composites consist of Fe-based amorphous-nanocrystalline flakes and graphite sheet coating, which exhibit good impedance matching. The modified magnetic and dielectric properties, especially the large coercivity, high permeability and the interfacial polarization are responsible for the significantly improved microwave absorption properties with minimum reflection loss of −67.95 dB at thin thickness of 1.6 mm and bandwidth of 5.36 GHz. The facile composites with excellent microwave absorbing properties are potential materials for high-performance microwave absorbers.
具有优异电磁波吸收性能的石墨烯-羰基铁交联复合材料
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