摘要
随着第三代半导体、新能源、新一代通信技术等领域的迅速更新迭代,电力电子器件高频化发展需求日益增加,高频下器件将面临更大的损耗考验,绿色节能已成为相关新材料发展的核心驱动力.非晶软磁复合材料是基于传统粉末冶金技术,将绝缘包覆后的非晶粉末压制成型得到的一类新型软磁材料.相比传统软磁材料,非晶软磁复合材料具有以下优点:三维磁各向同性、极低涡流损耗、中高频下相对较低的磁芯损耗、良好抗直流偏置能力和综合软磁性能,以及优异可加工性,适用于复杂和微型器件成型.本文从非晶粉末制备、绝缘包覆和成型、热处理、微观结构和软磁性能调控,以及纳米非晶磁粉芯等方面综述了非晶软磁复合材料近年来取得的研究成果,同时对未来非晶软磁复合材料的研究热点和趋势、关键问题、发展前景和应用进行了展望.
The rapid progression of third-generation semiconductors,new energy technologies,and next-generation communication systems has led to an increased demand for power electronic devices,particularly in high-frequency applications.The significance of high-frequency eddy current losses cannot be underestimated,and energy efficiency has emerged as a crucial impetus for the advancement of novel materials.Amorphous soft magnetic composites represent a new category of soft magnetic materials,which are derived from traditional powder metallurgy techniques,involving the insulation coating of amorphous powders and subsequent compression molding.Compared with conventional soft magnetic materials,amorphous soft magnetic composites offer several advantages,including three-dimensional magnetic isotropy,significantly reduced eddy current losses,lower core losses at medium and high frequencies,enhanced resistance to direct current bias,and superior comprehensive soft magnetic properties.Additionally,these materials facilitate flexible machine design and assembly,enabling the fabrication of complex and miniature devices.This study provides a comprehensive review of recent researches on amorphous soft magnetic composites,focusing on various aspects such as the preparation of amorphous powders,insulation coating and molding techniques,heat treatment processes,microstructure and soft magnetic property regulation,as well as the development of magnetic powder cores manufactured by nanoscale amorphous powder.Furthermore,we anticipate the future research trends in this field,alongside the key challenges,prospects and applications associated with amorphous soft magnetic composites.
作者
刘李晨
邵里良
白荣晟
丁华平
闫玉强
周靖
童星
杨卫明
柯海波
汪卫华
LIU LiChen;SHAO LiLiang;BAI RongSheng;DING HuaPing;YAN YuQiang;ZHOU Jing;TONG Xing;YANG WeiMing;KE HaiBo;WANG WeiHua(Songshan Lake Materials Laboratory,Dongguan 523808,China;Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China)
出处
《中国科学:物理学、力学、天文学》
北大核心
2025年第8期68-88,共21页
Scientia Sinica Physica,Mechanica & Astronomica
基金
广东省基础与应用基础研究重大项目(编号:2019B030302010)
国家自然科学基金(编号:52071222,52301212,52471179,52471180,52401218)资助。
关键词
非晶软磁复合材料
制备工艺
微观结构
软磁性能
纳米非晶粉末
amorphous soft magnetic composites
manufacture processes
microstructure
soft magnetic property
nanoscale amorphous powder
