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Enhanced electromagnetic wave absorption properties of Ni magnetic coating-functionalized SiC/C nanofibers synthesized by electrospinning and magnetron sputtering technology

[Display omitted] •Ni/SiC/C nanofibers were synthesized via electrospinning and magnetron sputtering.•Fillers result in Strong microwave absorption with a minimum of −32.3 dB.•Multicomponent composites possess wider absorption bandwidth.•Synergistic between SiC/C and Ni favours microwave absorption....

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Bibliographic Details
Published in:Chemical physics letters 2021-01, Vol.763, p.138230, Article 138230
Main Authors: Huo, Yashan, Tan, Yujia, Zhao, Kang, Lu, Zhengxin, Zhong, Linyi, Tang, Yufei
Format: Article
Language:English
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Summary:[Display omitted] •Ni/SiC/C nanofibers were synthesized via electrospinning and magnetron sputtering.•Fillers result in Strong microwave absorption with a minimum of −32.3 dB.•Multicomponent composites possess wider absorption bandwidth.•Synergistic between SiC/C and Ni favours microwave absorption.•Magnetic loss contributes more evenly to microwave absorption. Nickel/silicon carbide/carbon (Ni/SiC/C) composite nanofibers were synthesized via electrospinning and sputtering. The introduction of a Ni coating has an obvious sharp effect on the EMW absorption performances of SiC/C nanofibers. The results show that the permittivity and permeability were significantly improved, and the optimal reflection loss (RL) was reached in the C-band. The composite nanofibers/paraffin mixture (10 wt%) with an absorbent thickness of 5 mm presents an RLmin of approximately −32.3 dB at 4.3 GHz. The results indicate that the Ni/SiC/C composite nanofiber is a remarkable candidate for use as a high-efficiency and lightweight EMW absorbing material.
ISSN:0009-2614
DOI:10.1016/j.cplett.2020.138230