基于元件的调制工程改善磁电耦合，用于自防腐宽带吸收

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2025-04-15 DOI:10.1016/j.carbon.2025.120325

Yuhang Cheng , Xia Liu , Junwen Ren , Xianzhen Xu , Di Lan , Guangrong Wu , Siyuan Zhang , Zhenguo Gao , Zirui Jia , Guanglei Wu

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引用次数: 0

摘要

面对电磁污染的多变性，开发具有自保护性能和高吸收能力的电磁波吸收材料仍然是一项具有挑战性的任务。这主要取决于材料的结构设计和部件的选择。本研究通过静电纺丝技术将立方NiCoFe-PBA嵌入到纤维中，并在后续高温工艺中利用碳还原制备NiCoFe@CNFs复合材料。由于碳纤维固有的高导电性和结构设计。高密度的相互交织的导电网络极大地促进了电子的传递。这提高了介质损耗性能。此外，通过控制元件产生的界面极化来优化阻抗匹配。结果表明，该复合材料具有良好的自防腐性能和电子束吸收性能。在匹配厚度为2.3 mm时，NiCoFe@CNFs的最小反射损耗（RLmin）为−74.6 dB。其最大有效吸收带宽（EABmax）为7.68 GHz，对应厚度为2.7 mm。此外，雷达截面（RCS）计算表明，制备的NiCoFe@CNFs在军事隐身防护技术的实际应用中具有很大的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Component-based modulation engineering to improve magnetoelectric coupling for self-anticorrosion broadband absorption

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Component-based modulation engineering to improve magnetoelectric coupling for self-anticorrosion broadband absorption

In the face of the variability of electromagnetic pollution, developing electromagnetic wave (EW) absorbing materials with self-protective properties and high absorption capacity remains a challenging task. This mainly depends on the structural design of the material and the selection of components. In this study, cubic NiCoFe-PBA was embedded into the fiber by electrospinning technology, and NiCoFe@CNFs composite material was prepared by using carbon reducibility during subsequent high temperature process. Due to the inherent high electrical conductivity and structural design of carbon fiber. The interwoven conductive networks of high density greatly facilitate electron transport. This improves the dielectric loss performance. In addition, impedance matching is optimized by controlling component-generated interfacial polarization. As a result, the composite obtain excellent self-anticorrosion and EW absorption performance. At matching thickness of 2.3 mm, the minimum reflection loss (RL_min) of NiCoFe@CNFs is −74.6 dB. Its maximum effective absorption bandwidth (EAB_max) is 7.68 GHz and corresponding thickness is 2.7 mm. In addition, the calculation of radar cross section (RCS) shows that the prepared NiCoFe@CNFs has great potential in the practical application of military stealth protection technology.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.