One-Dimensional Magnetic FeCoNi Alloy Toward Low-Frequency Electromagnetic Wave Absorption

被引：11

作者：

Bintong Yang ^{[1
]}

Jiefeng Fang ^{[1
]}

Chunyang Xu ^{[1
]}

Hui Cao ^{[1
]}

Ruixuan Zhang ^{[1
]}

Biao Zhao ^{[1
]}

Mengqiu Huang ^{[1
]}

Xiangyu Wang ^{[1
]}

Hualiang Lv ^{[2
]}

Renchao Che ^{[1
,3
]}

机构：

[1] Laboratory of Advanced Materials,Shanghai Key Lab of Molecular Catalysis and Innovative Materials,Department of Materials Science,Fudan University

[2] Willian GLowrie Department of Chemical and Biomolecular Engineering,The Ohio State University

[3] Zhejiang Laboratory,Joint-Research Center for Computational Materials

来源：

Nano-Micro Letters | 2022年 / 14卷 / 10期

关键词：

D O I：

暂无

中图分类号：

TQ340.64 [纺丝];

学科分类号：

0805 ; 080502 ;

摘要：

Rational designing of one-dimensional(1 D) magnetic alloy to facilitate electromagnetic(EM) wave attenuation capability in low-frequency(2–6 GHz) microwave absorption field is highly desired but remains a significant challenge.In this study,a composite EM wave absorber made of a Fe Co Ni medium-entropy alloy embedded in a 1 D carbon matrix framework is rationally designed through an improved electrospinning method.The 1 D-shaped Fe Co Ni alloy embedded composite demonstrates the high-density and continuous magnetic network using off-axis electronic holography technique,indicating the excellent magnetic loss ability under an external EM field.Then,the in-depth analysis shows that many factors,including 1 D anisotropy and intrinsic physical features of the magnetic medium-entropy alloy,primarily contribute to the enhanced EM wave absorption performance.Therefore,the fabricated EM wave absorber shows an increasing effective absorption band of 1.3 GHz in the low-frequency electromagnetic field at an ultrathin thickness of 2 mm.Thus,this study opens up a new method for the design and preparation of high-performance 1 D magnetic EM absorbers.

引用

页码：266 / 278

页数：13

共 21 条

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