A Smart Amorphous Wire Composite with Tunable Electromagnetic Shielding

Xiao Dai; Jia Zhou; Zenan Ma; Jiali Chen; Bin Shen; Chunyang Mu; Aina He; Yaqiang Dong; Qikui Man; Jiawei Li

doi:10.1002/sstr.202300405

Small Structures (Feb 2024)

A Smart Amorphous Wire Composite with Tunable Electromagnetic Shielding

Xiao Dai,
Jia Zhou,
Zenan Ma,
Jiali Chen,
Bin Shen,
Chunyang Mu,
Aina He,
Yaqiang Dong,
Qikui Man,
Jiawei Li

Affiliations

Xiao Dai: CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China
Jia Zhou: CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China
Zenan Ma: School of Materials and Energy University of Electronic Science and Technology of China Chengdu 610054 China
Jiali Chen: College of Materials Science and Opto‐Electronic Technology University of Chinese Academy of Sciences Beijing 100049 China
Bin Shen: College of Materials Science and Opto‐Electronic Technology University of Chinese Academy of Sciences Beijing 100049 China
Chunyang Mu: CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China
Aina He: CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China
Yaqiang Dong: CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China
Qikui Man: CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China
Jiawei Li: CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China

DOI: https://doi.org/10.1002/sstr.202300405
Journal volume & issue: Vol. 5, no. 2
pp. n/a – n/a

Abstract

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Nowadays, in view of the increasingly serious problems of electromagnetic interference (EMI) and radiation pollution, smart EMI shielding materials with tunable shielding effectiveness (SE), especially “On/Off” switchable capability, are highly desirable. Herein, Co‐based amorphous wires (AWs) with excellent soft magnetic and mechanical properties are regularly arranged on a 3D‐printed mold as tunable EMI shielding composites. The EMI SE can be easily tuned in the range of ≈0.6–24.7 dB by way of rotation, which has been confirmed to be an effective way to achieve free tuning of EMI SE by simulation. In addition, by compositing AWs with reduced graphene oxide and constructing a double‐layer structure with a gap of 1/4 wavelength in the X‐band, a much wider SE tuning range of ≈1.0–57.7 dB is further realized. The representative “On/Off” switchable shielding capability that can switch between EM transmission and effective shielding, together with the wide SE tuning range larger than 50 dB, shows the great potential of Co‐based AW composites in smart EMI shielding applications.

Published in Small Structures

ISSN: 2688-4062 (Online)
Publisher: Wiley-VCH
Country of publisher: Germany
LCC subjects: Science: Physics; Science: Chemistry
Website: https://onlinelibrary.wiley.com/journal/26884062

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