Spiral engineering for carbon fibers wrapped with CoNi nanoparticle showing great potential in multiband absorption, aerogelation and self-cleaning

IF 12.1 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Rare Metals Pub Date : 2025-09-15 DOI:10.1007/s12598-025-03594-3

Bo Jiang, Bo Long, Si Chen, Qingguo Li, Chao Zhang, Jin-Cheng Ma, Yaming Zhuang, Yifan Yang, Shuang‐Yan Lin, Yunyun Li

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引用次数: 0

Abstract

Although carbon fiber electromagnetic wave absorbing materials have shown great potential in the field of electromagnetic protection, the currently reported carbon fiber-based absorbers are limited to the manipulation of composition and external structure, lacking the design of intrinsic morphology. To fill the above-mentioned gap, this work presents a spiral carbon fiber compounded with CoNi magnetic nanoparticles (CoNi@SCF). Attributed to its special morphology and dielectric-magnetic synergy, this material offers abundant attenuation mechanisms, demonstrating strong absorption at multiple frequencies with broadband application potential. In particular, the maximum reflection loss and effective absorption bandwidth of CoNi@SCF reach −66.5 dB at 2.9 mm and 6.6 GHz at 2.1 mm, respectively, and the maximum RCS reduction value of 41.5 dB m2 also confirms the actual efficiency. In addition, gelation and hydrophobic modification experiments have been explored to meet the requirements for the employment of magnetic carbon fibers in practical scenarios. Therefore, this work may provide new inspiration for the design and manufacture of novel magnetic carbon fiber absorbers with great stability and multiband absorption performance.

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纳米颗粒包裹碳纤维的螺旋工程在多波段吸收、气凝胶和自清洁方面具有很大的潜力

虽然碳纤维电磁波吸波材料在电磁防护领域显示出巨大的潜力，但目前报道的碳纤维基吸波材料仅局限于对成分和外部结构的操纵，缺乏对本征形态的设计。为了填补上述空白，本研究提出了一种与CoNi磁性纳米颗粒复合的螺旋碳纤维（CoNi@SCF）。由于其特殊的形态和介质磁协同作用，这种材料提供了丰富的衰减机制，在多频率下表现出很强的吸收，具有宽带应用潜力。特别是，CoNi@SCF的最大反射损耗和有效吸收带宽分别在2.9 mm和2.1 mm处达到- 66.5 dB和6.6 GHz，最大RCS减小值为41.5 dB m2，也证实了实际效率。此外，还探索了胶凝和疏水改性实验，以满足磁性碳纤维在实际应用中的使用要求。因此，这项工作可能为设计和制造具有高稳定性和多波段吸收性能的新型磁性碳纤维吸收器提供新的灵感。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Rare Metals 工程技术-材料科学：综合

CiteScore

12.10

自引率

12.50%

发文量

2919

审稿时长

2.7 months

期刊介绍： Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.