Magnetic field-assisted construction of ordered ferromagnetic nanowire fibers with enhanced microwave absorption and high stability electromagnetic interference shielding

IF 2.5 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Magnetism and Magnetic Materials Pub Date : 2024-11-24 DOI:10.1016/j.jmmm.2024.172678

Ping-an Yang , Chensong Zhao , Lihua Zou , Mengjie Shou , Yuxin Zhang , Wenxian Ye , Jiufei Luo

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引用次数: 0

Abstract

The use of electromagnetic interference (EMI) fabrics spun with metal fibers is an effective measure for personal protection against high electromagnetic radiation. To address the limitations of traditional metal fiber-coated shielding effectiveness (SE) fabrics, which often underperform, this study proposes the development of ferrimagnetic fiber composites with excellent absorption properties. By employing magnetic field structuring to create an ordered structure, the goal is to produce shielding fabrics with high absorption SE and strong mechanical stability. This paper introduces a magnetic field ink control method to construct an ordered conductive network. The EMI SE of fabrics prepared using the magnetic ink control method reached 40.74 dB, which is higher than that of samples prepared using simpler control methods (34.76 dB). The fabric prepared with this method retains 88 % and 92 % of its original EMI SE after 1000 bending and 500 twisting cycles, respectively, which is significantly better than the performance of samples prepared with simpler control methods (54 % and 48 %). The Specific Absorption Rate (SE_A/SE) is 93 %, higher than the 87 % achieved by simpler methods. This work provides a new approach for the development of high-EMI SE fabrics.

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磁场辅助构建具有增强微波吸收和高稳定性电磁干扰屏蔽功能的有序铁磁纳米线纤维

使用金属纤维纺制的电磁干扰（EMI）织物是个人防护高电磁辐射的有效措施。传统的金属纤维涂层屏蔽效能（SE）织物往往表现不佳，为解决其局限性，本研究提出开发具有优异吸收特性的铁磁纤维复合材料。通过采用磁场结构化来创建有序结构，目标是生产出具有高吸收 SE 和强机械稳定性的屏蔽织物。本文介绍了一种构建有序导电网络的磁场墨水控制方法。使用磁墨控制方法制备的织物的 EMI SE 达到 40.74 dB，高于使用简单控制方法制备的样品（34.76 dB）。用这种方法制备的织物在经过 1000 次弯曲和 500 次扭转后，其 EMI SE 分别保持了原来的 88% 和 92%，明显优于用简单控制方法制备的样品（54% 和 48%）。比吸收率（SEA/SE）为 93%，高于简单方法的 87%。这项工作为开发高 EMI SE 织物提供了一种新方法。

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

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.