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Soft Magnetic Materials: Synthesis, Properties and Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Physics".

Deadline for manuscript submissions: closed (20 September 2025) | Viewed by 1687

Special Issue Editor


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Guest Editor
Department of Functional Materials, Institute of Non-Ferrous Metals—Lukasiewicz Research Network, 44-100 Gliwice, Poland
Interests: soft magnetic materials; magnetocaloric materials; magnetic properties; metallic glasses; carbonaceous materials; crystal structure; composite materials
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Special Issue Information

Dear Colleagues,

This Special Issue is devoted to research contributions that explore the design of materials and novel technology applications for obtaining the desired properties of soft magnetic materials. This Special Issue focuses on the relationship between the various preparation/treatment aspects, crystal structure, magnetic structure and magnetic properties, including loss generation mechanism and eddy current suppression. Studies on the effect of the insertion of insulating layers on powders/nanopowders and of melt-spun ribbons on eddy current suppression and the enhancement of soft magnetic characteristics are especially welcome. This Special Issue also welcomes contributions related to the 3D printing process of soft magnetic materials and their polymer-based composites. By providing a comprehensive overview of the interplay between the loss generation mechanism and its suppression, this resource serves as a valuable reservoir of knowledge for increasing magnetic material applications.

Dr. Łukasz Hawełek
Guest Editor

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Keywords

  • soft magnetic materials
  • magnetic properties
  • eddy current suppression
  • 3D printing process

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Published Papers (1 paper)

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Research

34 pages, 9541 KB  
Article
Formability and Electromagnetic Performance Comparison of Fe-P-Based SMC and Fe-5.0 wt.%Si Powders
by Seongsu Kang and Seonbong Lee
Materials 2025, 18(18), 4405; https://doi.org/10.3390/ma18184405 - 21 Sep 2025
Cited by 1 | Viewed by 961
Abstract
This study investigates the comparative applicability of Somaloy 700HR 5P and Fe-5.0 wt.%Si powders for axial flux permanent magnet (AFPM) motor cores in low-speed electric vehicles. Optimal forming conditions were derived through Taguchi-based simulations, considering corner radius, forming temperature, and forming speed, followed [...] Read more.
This study investigates the comparative applicability of Somaloy 700HR 5P and Fe-5.0 wt.%Si powders for axial flux permanent magnet (AFPM) motor cores in low-speed electric vehicles. Optimal forming conditions were derived through Taguchi-based simulations, considering corner radius, forming temperature, and forming speed, followed by prototype fabrication and validation. Simulation and SEM-EDS analyses confirmed consistent density distribution trends, and XRD verified phase stability during forming. While Fe-5.0 wt.%Si exhibited ~10% ± 2 superior electromagnetic performance in the powder state, its motor dynamo performance decreased by 19–25% (n = 1) compared to Somaloy 700HR 5P. This discrepancy was attributed to its ~4% lower target density (7.19 ± 0.02 g/cm3 vs. 7.51 ± 0.01 g/cm3, n = 3), assembly-induced mechanical losses, and non-uniform insulation layer caused by residual H3PO4 and Mo segregation. Somaloy 700HR 5P, despite a higher relative density variation (0.084 ± 0.002 g/cm3 vs. 0.063 ± 0.003 g/cm3 for Fe-5.0 wt.%Si), achieved an average density close to 7.5 g/cm3 and delivered more stable motor performance. Overall, Somaloy 700HR 5P was identified as a more suitable candidate for AFPM motor cores in low-speed EV applications, balancing formability and electromagnetic performance. Full article
(This article belongs to the Special Issue Soft Magnetic Materials: Synthesis, Properties and Applications)
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