Enhanced microwave absorption in C@Co/carbonyl iron fiber composite with multi-level interfaces

IF 23.2 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES
Kai Sun, Zelin Xie, Xuechun Yang, Yunchen Long, Pengtao Yang, Chuanbing Cheng, Xiaosi Qi
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引用次数: 0

Abstract

With the accelerated advancement of electronic information and military technology, there is a pressing need to develop high-performance absorbing materials. In this paper, we proposed to enhance the microwave absorption performance according to the coupling effect of electric–magnetic loss in magnetic composites with multi-level interfaces. Specifically, the magnetic cobalt nanoparticles were embedded within the porous carbon matrix derived from a metal–organic framework and composited with carbonyl iron fiber to prepare C@Co/CIF composites with multi-level interfaces. When the C@Co/CIF loading ratio was 30 wt%, the minimum reflection loss (RLmin) of the absorber was − 45.65 dB, and the effective absorption bandwidth was about 4.8 GHz with a matching thickness of 1.35 mm, which presented a good microwave absorption performance. Electromagnetic waves can penetrate through multiple scattering and internal reflections and eventually disappear through multi-level interfaces of C@Co/CIF composites. Meanwhile, the dielectric porous carbon, the magnetic cobalt, and CIF made a synergistic effect on the electric–magnetic loss, which was responsible for the attenuation of the electromagnetic wave. The findings of this study offer insight that can inform the design and fabrication of metal–organic framework derivatives for electromagnetic wave absorption materials.

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来源期刊
CiteScore
26.00
自引率
21.40%
发文量
185
期刊介绍: Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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