摘要
采用在FeSiB非晶软磁材料表面原位生长MIL-88(Fe)的方法,合成了MIL-88(Fe)@FeSiB复合材料。通过改变MIL-88(Fe)的添加量优化复合材料的电磁波吸收特性。当MIL-88(Fe)添加量为20%、吸波涂层厚度为3.3 mm、频率为6.3 GHz时,反射率最小值达到-69.99 dB。多孔结构MIL-88(Fe)材料的引入,增强了电磁波在材料内部的多重反射和界面极化作用,同时改善了阻抗匹配,使得材料的电磁波吸收性能达到最优。
The MIL-88(Fe)@FeSiB composite material was synthesized by in-situ growth of MIL-88(Fe)on the surface of FeSiB amorphous soft magnetic material.Optimize the electromagnetic wave absorption characteristics of composite materials by changing the amount of MIL-88(Fe)added.When the content of MIL-88(Fe)is 20%,the thickness of the absorbing coating is 3.3 mm,and the frequency is 6.3 GHz,the minimum reflectivity reaches-69.99 dB.The introduction of MIL-88(Fe)material with porous structure increases the multiple reflections and interface polarization of electromagnetic waves inside the material,while improving impedance matching,resulting in optimal electromagnetic wave absorption performance of the material.
作者
陈斌
覃坤泉
董韦韦
涂思皓
张莹洁
王磊
CHEN Bin;QIN Kunquan;DONG Weiwei;TU Sihao;ZHANG Yingjie;WANG Lei(The Fifth Electronics Research Institute of the Ministry of Industry and InformationTechnology,Guangzhou 510640,China;Chongqing CEPREI Industrial Technology Research Institute Co.,Ltd.,Chongqing 401332,China;College of Rare Earths,Jiangxi University of Science and Technology,Ganzhou 341000,China)
出处
《电工材料》
2025年第4期43-49,52,共8页
Electrical Engineering Materials
基金
纳米合金/Nd-Fe-B复合永磁体的晶界优化及矫顽力增强机制研究(20212BAB204021)。
关键词
电磁波吸收材料
MOFs材料
FeSiB非晶软磁材料
electromagnetic wave absorbing materials
MOFs materials
FeSiB amorphous soft magnetic material
