Soft magnetic composite materials were prepared by powder metallurgy technology. The composition of the new family of the materials was based on Permalloy type of ferromagnetic particles covered by Ni0.2Zn0.8Fe2O4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {Ni}_{0.2}\hbox {Zn}_{0.8}\hbox {Fe}_{2}\hbox {O}_{4}$$\end{document} nanoparticles. The spinel ferrite was prepared by electrospinning technology for achieving high-quality nanoparticles. A small amount of organic additives was included in final samples. The influence of magnetic ferrite dielectric coating on the magnetic properties of prepared composites was studied. The relatively high electrical resistivity leads to the real part of complex permeability up to 52 with stability up to high frequencies of about 1 MHz. SEM and TEM analyses were employed for composite characterization. The preparation of samples for magnetic force microscopic analysis is outlined in detail. The visualization of magnetic domain structure was done in order to understand the material behaviour of magnetic materials.

中文翻译：

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铁氧体纳米粒子掺杂坡莫合金-铁氧体-聚合物软磁复合材料的设计和磁畴可视化

采用粉末冶金技术制备软磁复合材料。新系列材料的成分基于由 Ni0.2Zn0.8Fe2O4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{ 覆盖的坡莫合金类型的铁磁颗粒amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {Ni}_{0.2}\hbox {Zn}_{ 0.8}\hbox {Fe}_{2}\hbox {O}_{4}$$\end{document} 纳米粒子。尖晶石铁氧体是通过静电纺丝技术制备的，以获得高质量的纳米粒子。最终样品中包含少量有机添加剂。研究了磁性铁氧体介电涂层对制备的复合材料磁性能的影响。相对较高的电阻率导致复磁导率的实部高达 52，稳定性高达约 1 MHz 的高频。SEM 和 TEM 分析用于复合材料表征。详细概述了磁力显微分析样品的制备。磁畴结构的可视化是为了了解磁性材料的材料行为。