A comparative study on the lamella effect and properties of atomized iron powder and reduced iron powder in Fe-based soft magnetic composites

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-17 DOI:10.1016/j.mseb.2024.117844

Zhenjia Yang , Zigui Luo , Qi Jin , Xi’an Fan , Zhaoyang Wu , Jian Wang , Guangqiang Li

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Abstract

We prepared Fe soft magnetic composites (SMCs) with lamellar structure by using the flaky Iron powder, and studied the effects of types of iron powder on the microstructure and properties of Fe SMCs. The results show that the atomized iron powder and the reduced iron powder are deformed into flaky structure after ball milling, and these flaky iron powder have greater magnetic susceptibility and eddy current diameter perpendicular to the magnetic flux direction. In addition, compared with flaky gas atomized iron powder, the flaky reduced iron powder has large aspect ratio and lower coercivity. Therefore, the Fe SMCs with flaky reduced iron powder exhibit relatively high permeability (82) and low eddy current loss (0.033 W/kg at 50 kHz, 0.05 T), which shows the potential possibility of application at high frequency.

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雾化铁粉和还原铁粉在铁基软磁复合材料中的层状效应和性能比较研究

我们利用片状铁粉制备了具有片状结构的铁基软磁复合材料（SMC），并研究了铁粉类型对铁基软磁复合材料微观结构和性能的影响。结果表明，雾化铁粉和还原铁粉在球磨后变形为片状结构，这些片状铁粉具有更大的磁感应强度和垂直于磁通方向的涡流直径。此外，与片状气体雾化铁粉相比，片状还原铁粉具有较大的长宽比和较低的矫顽力。因此，使用片状还原铁粉的铁 SMC 具有相对较高的磁导率（82）和较低的涡流损耗（50 kHz、0.05 T 时为 0.033 W/kg），这显示了在高频应用的潜在可能性。

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来源期刊

Materials Science and Engineering B-advanced Functional Solid-state Materials 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.