A novel two-layer honeycomb sandwich structure absorber with high-performance microwave absorption
A novel two-layer honeycomb sandwich structure absorber with high-performance microwave absorption
复制标题
一种新型高性能微波吸收两层蜂窝夹层结构吸波体
DOI：
10.1016/j.compositesa.2019.01.015
复制
发表时间：
2019-04-01
影响因子：
8.7
通讯作者：
Gong, Rongzhou
中科院分区：
文献类型：
--
作者：
Luo, Hui;Chen, Fu;Gong, Rongzhou
提出了一种制备双层蜂窝夹层结构吸波材料的新方法。采用浸渍法制备了不同孔径的导电炭黑填充的环氧树脂包覆蜂窝芯材。设计了单层蜂窝芯和双层蜂窝芯蜂窝夹层结构吸波材料(HSSA)，并利用ARCH测量系统在2~18 GHz范围内对HSSA的吸波性能进行了测试。蜂窝芯体顶部的匹配层可以提高其微波吸收性能。采用片状羰基铁粉(FCIP)/环氧树脂复合材料制作的THSSA，在4.9~18 GHz频率范围内，吸波厚度为9 mm时，反射损耗可达-10dB。结果表明，具有轻质、宽带吸收特性的THSSA在降低电磁波辐照和干扰方面具有广阔的应用前景。
A novel method for fabricating the two-layer honeycomb sandwich structure absorber (THSSA) was developed. The honeycomb cores with different pore sizes coated with epoxy resin filled with conductive carbon black as lossy filler have been fabricated by dipping processes. The microwave absorption properties of the honeycomb sandwich structure absorber (HSSA) with one-layer honeycomb core and two-layer honeycomb core have been designed and measured using arch measurement system within 2-18 GHz. The matching layer on the top of the honeycomb core can enhance the microwave absorption properties. The value of reflection loss can reach -10 dB in the frequency range of 4.9-18 GHz with an absorber thickness 9 mm for the fabricated THSSA with the flaky carbonyl iron powder (FCIP)/epoxy resin composite at the bottom. It was shown that the THSSA with lightweight and broadband absorption properties have a promising future in decreasing electromagnetic wave irradiation and interference.