提高小粒径fesal /WS2复合材料的高频性能

IF 6.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-06-10 DOI:10.1016/j.jmrt.2025.06.075

Shoujin Zhu , Weibing Wu , Songlin Zhou , Zongyang Zhang , Shuangjiu Feng , Xian Song Liu , Xucai Kan

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引用次数: 0

摘要

本研究采用200目和600目尺寸的fesal作为原材料，采用层状二维半导体材料（WS2）作为绝缘涂层剂。采用超声混合法制备了fesal /2.25 wt%WS2复合材料，系统研究了粒径对其形貌和磁性能的影响。扫描电镜结果显示，在fesal颗粒表面均匀地包裹了一层二维层状WS2，从而形成了一层高效的无机涂层。复合材料的磁导率实验表明，减小fesal的粒径不仅提高了fesal /2.25 wt%WS2复合材料的弛豫频率（fr），而且降低了涡流损耗，使该复合材料非常适合于高频工作和应用。样品B表现出比样品A更低的磁损耗，在1 MHz和20 mT时磁损耗为367 kW/m3。

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Enhancing the high-frequency performance of FeSiAl/WS2 composites with small particle sizes

This study utilized FeSiAl with 200- and 600-mesh sizes as the raw material and a layered 2D semiconducting material (WS₂) as an insulation coating agent. FeSiAl/2.25 wt%WS₂ composites were developed through ultrasonic mixing, and the influence of the particle size on their morphology and magnetic properties was systematically investigated. Results obtained from scanning electron microscopy revealed a uniform coating of the 2D layered WS₂ on the surface of the FeSiAl particles, thus forming an efficient inorganic coating layer. Composite permeability experiments indicated that reducing the FeSiAl particle size not only enhanced the relaxation frequency(f_r) of the FeSiAl/2.25 wt%WS₂ composites but also lowered the eddy current losses, making these composites highly suitable for high-frequency operation and applications. Sample B exhibited lower magnetic loss than Sample A, with a magnetic loss equal to 367 kW/m³ at 1 MHz and 20 mT.

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来源期刊

Journal of Materials Research and Technology-Jmr&t Materials Science-Metals and Alloys

CiteScore

8.80

自引率

9.40%

发文量

1877

审稿时长

35 days

期刊介绍： The Journal of Materials Research and Technology is a publication of ABM - Brazilian Metallurgical, Materials and Mining Association - and publishes four issues per year also with a free version online (www.jmrt.com.br). The journal provides an international medium for the publication of theoretical and experimental studies related to Metallurgy, Materials and Minerals research and technology. Appropriate submissions to the Journal of Materials Research and Technology should include scientific and/or engineering factors which affect processes and products in the Metallurgy, Materials and Mining areas.