Ball milling modification impact on the electromagnetic wave absorption properties of Fe83.3Si4B7P4Cu0.7Co1 amorphous powder

Huimin Jia; Bingwen Zhou; Yunfeng Liu; Mengnan Lv; Bin Ya; Xingguo Zhang

doi:10.1117/12.3033957

5 July 2024 Ball milling modification impact on the electromagnetic wave absorption properties of Fe_83.3Si₄B₇P₄Cu_0.7Co₁ amorphous powder

Huimin Jia, Bingwen Zhou, Yunfeng Liu, Mengnan Lv, Bin Ya, Xingguo Zhang

Author Affiliations +

Proceedings Volume 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024); 1318308 (2024) https://doi.org/10.1117/12.3033957
Event: The 3rd International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 2024, Wuhan, China

Abstract

The enhanced broadband absorption and optimized impedance matching were of significant importance for achieving "thin, light, wide, and strong" in absorber materials. In this study, Fe_83.3Si₄B₇P₄Cu_0.7Co₁ amorphous alloy powders were prepared using vacuum air atomization method. The powders were mechanically crushed via high-energy ball milling, and the microstructure, morphology, and absorption properties of the materials were characterized. The results show that the loss mechanism of Fe_83.3Si₄B₇P₄Cu_0.7Co₁ amorphous alloy powders is primarily magnetic loss, including eddy current loss and natural resonance. The flattening of the powders not only increases anisotropy and optimizes impedance matching but also enhances the complex permittivity and permeability, endowing the material with excellent bandwidth effects and electromagnetic wave loss capability. The maximum effective absorption bandwidth (Δf_{RL<-10 dB}) of the sample ball-milled for 6 hours can reache 8.29 GHz (9.71 GHz ~ 18 GHz), with the minimum reflection loss(RL_min) at 13.2 GHz being -41.73 dB and a sample thickness of 2 mm. This indicates that the material has good absorbing performance and exceptional bandwidth capabilities in the mid to high-frequency range, covering part of the X-band and the entire Ku-band, offering greater flexibility and applicability in practical applications.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Huimin Jia, Bingwen Zhou, Yunfeng Liu, Mengnan Lv, Bin Ya, and Xingguo Zhang "Ball milling modification impact on the electromagnetic wave absorption properties of Fe_83.3Si₄B₇P₄Cu_0.7Co₁ amorphous powder", Proc. SPIE 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 1318308 (5 July 2024); https://doi.org/10.1117/12.3033957

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KEYWORDS

Alloys

Absorption

Magnetism

Electromagnetic radiation

Reflection

Dielectrics

Dielectric polarization

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