Development of Fe-Based Amorphous/Nanocrystalline Alloys for Electromagnetic Interference Mitigation

IF 1.6 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Numerical Modelling-Electronic Networks Devices and Fields Pub Date : 2025-07-03 DOI:10.1002/jnm.70076

Yimin Guo, Rujun Ma, Yuan Li, Xinrong Chi, Kunyu Chen, Tengyun Su, Yuchen Wei, Ziwei He, Miaonan Liu, Junyi Xiong, Wenxi Zhao, Xiaoqiang Li, Qingyu Wang, Xuchao Wang, Zhi Sun, Bing Liu, Xiaoyue Zhang, Xin He, Lingrui Zheng, Peng Qin

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引用次数: 0

Abstract

Growing concerns about electromagnetic radiation from communication technologies such as 5G have prompted a search for effective microwave-absorbing materials to mitigate potential health risks. This study focuses on the development of Fe-based amorphous/nanocrystalline alloys as microwave absorbers, with specific emphasis on achieving cost-effectiveness, reduced thickness, and superior absorption capabilities. FePC alloy powders, treated through thermal annealing and ball milling (synergistic processing), exhibit enhanced saturation magnetization and superior microwave absorption properties. The powders, with small particle sizes and high surface areas, demonstrate excellent absorption, achieving a minimum reflection loss (RL) of −30.1 dB at 12.8 GHz with a 5.3 GHz absorption bandwidth at 2 mm thickness. The results highlight the promising potential of these materials for practical applications in reducing electromagnetic interference, offering a combination of high performance, low cost, and easy processing.

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电磁干扰抑制用铁基非晶/纳米晶合金的研制

人们对5G等通信技术产生的电磁辐射越来越担忧，这促使人们寻找有效的微波吸收材料，以减轻潜在的健康风险。本研究的重点是开发铁基非晶/纳米晶合金作为微波吸收剂，特别强调实现成本效益，减少厚度和优越的吸收能力。FePC合金粉末经热退火和球磨（协同加工）处理后，表现出增强的饱和磁化和优异的微波吸收性能。该粉体具有粒径小、比表面积高的特点，具有良好的吸收性能，在12.8 GHz时的最小反射损耗（RL）为−30.1 dB，在2mm厚度时的吸收带宽为5.3 GHz。结果突出了这些材料在减少电磁干扰方面的实际应用潜力，提供了高性能，低成本和易于加工的组合。

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

International Journal of Numerical Modelling-Electronic Networks Devices and Fields 工程技术-工程：电子与电气

CiteScore

4.60

自引率

6.20%

发文量

101

审稿时长

>12 weeks

期刊介绍： Prediction through modelling forms the basis of engineering design. The computational power at the fingertips of the professional engineer is increasing enormously and techniques for computer simulation are changing rapidly. Engineers need models which relate to their design area and which are adaptable to new design concepts. They also need efficient and friendly ways of presenting, viewing and transmitting the data associated with their models. The International Journal of Numerical Modelling: Electronic Networks, Devices and Fields provides a communication vehicle for numerical modelling methods and data preparation methods associated with electrical and electronic circuits and fields. It concentrates on numerical modelling rather than abstract numerical mathematics. Contributions on numerical modelling will cover the entire subject of electrical and electronic engineering. They will range from electrical distribution networks to integrated circuits on VLSI design, and from static electric and magnetic fields through microwaves to optical design. They will also include the use of electrical networks as a modelling medium.