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铁素体含量和温度对Fe@SiO2@Mn-Zn铁氧体SMC材料磁性能的影响

Effect of ferrite content and temperature on the magnetic properties of Fe@SiO2@Mn-Zn-ferrite SMC materials.

作者信息

Füzer Ján, Dobák Samuel, Vovk Sviatoslav, Bednarčík Jozef, Bureš Radovan, Fáberová Mária, Kollár Peter, Tsakaloudi Vasiliki, Zaspalis Vassilios

机构信息

Faculty of Science, Institute of Physics, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 041 54, Košice, Slovakia.

Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 04001, Košice, Slovakia.

出版信息

Sci Rep. 2025 Jul 28;15(1):27519. doi: 10.1038/s41598-025-13494-2.

DOI:10.1038/s41598-025-13494-2
PMID:40721491
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12304300/
Abstract

Building upon previous studies that have reported promising soft magnetic performance of Fe/Mn-Zn ferrite-based soft magnetic composites (SMCs), the present work focuses on effect of ferrite content and temperature on the magnetic properties of Fe@SiO2@Mn-Zn-ferrite SMC materials. A series of five Fe/SiO/Mn-Zn SMCs were fabricated using powder metallurgy and compaction. Structural characterization and detailed magnetic property measurements were performed to assess their soft magnetic behavior. The composites were synthesized with varying mass ratios of Fe/SiO to Mn-Zn ferrite powders, specifically 100:0, 99:1, 98:2, 97:3, 96:4, and 90:10. Key magnetic parameters evaluated included complex permeability, maximum permeability, total core loss, and its components: hysteresis loss, classical eddy current loss, and excess loss. Furthermore, frequency-temperature loss maps were constructed to evaluate the magnetic performance under different thermal and frequency conditions. Considering the specific operational frequency requirements, the optimal ferrite concentration within the composite was determined to be in the range of 2-4%. The investigation highlighted the influence of excess magnetic losses, especially within the medium-frequency range. The modified composites demonstrated improved thermal stability, retaining favorable soft magnetic properties after thermal cycling up to 200 °C. These results highlight the potential applicability of the developed composites in environments demanding reliable high-temperature magnetic performance.

摘要

基于先前报道的铁/锰锌铁氧体基软磁复合材料（SMC）具有良好软磁性能的研究，本工作聚焦于铁氧体含量和温度对Fe@SiO2@Mn-Zn铁氧体SMC材料磁性能的影响。采用粉末冶金和压制工艺制备了一系列五种Fe/SiO/Mn-Zn SMC。进行了结构表征和详细的磁性能测量以评估其软磁行为。合成的复合材料中Fe/SiO与锰锌铁氧体粉末的质量比各不相同，具体为100:0、99:1、98:2、97:3、96:4和90:10。评估的关键磁参数包括复磁导率、最大磁导率、总铁芯损耗及其组成部分：磁滞损耗、经典涡流损耗和过剩损耗。此外，构建了频率-温度损耗图以评估不同热和频率条件下的磁性能。考虑到特定的工作频率要求，确定复合材料中最佳铁氧体浓度范围为2-4%。该研究突出了过剩磁损耗的影响，尤其是在中频范围内。改性后的复合材料表现出更好的热稳定性，在高达200°C的热循环后仍保持良好的软磁性能。这些结果突出了所开发复合材料在要求可靠高温磁性能的环境中的潜在适用性。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bbc7/12304300/82c572fd6c6f/41598_2025_13494_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bbc7/12304300/f60d272b6775/41598_2025_13494_Fig10_HTML.jpg
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