{"title":"FeSi/biotite soft magnetic composites with low magnetic losses and high magnetic permeabilities","authors":"Shoujin Zhu, Chengwen Zhang, Weibing Wu, Songlin Zhou, Jiangli Ni, Shuangjiu Feng, Xiansong Liu, Xucai Kan, Dingni Shi","doi":"10.1007/s10854-025-14898-6","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, soft magnetic composites comprising ferrosilicon (FeSi) and biotite were prepared via ball milling, and their morphologic and magnetic characteristics were investigated. Scanning electron microscopy revealed that the shear and crushing forces of ball milling led to the stripping and crushing of the layered biotite into nanosheets, which uniformly adhered to the FeSi particles, forming inorganic insulating coatings. Incorporating biotite not only decreased the eddy current loss of the FeSi/biotite composite but also increased its relaxation frequency. Among the composites, FeSi/1-wt.% biotite exhibited outstanding magnetic characteristics, with respective effective permeability and magnetic loss of 68.2 and 1879 kW/m<sup>3</sup> (measured at 0.1 T and 100 kHz).</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 15","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-025-14898-6","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, soft magnetic composites comprising ferrosilicon (FeSi) and biotite were prepared via ball milling, and their morphologic and magnetic characteristics were investigated. Scanning electron microscopy revealed that the shear and crushing forces of ball milling led to the stripping and crushing of the layered biotite into nanosheets, which uniformly adhered to the FeSi particles, forming inorganic insulating coatings. Incorporating biotite not only decreased the eddy current loss of the FeSi/biotite composite but also increased its relaxation frequency. Among the composites, FeSi/1-wt.% biotite exhibited outstanding magnetic characteristics, with respective effective permeability and magnetic loss of 68.2 and 1879 kW/m3 (measured at 0.1 T and 100 kHz).
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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