Interface microstructure and electromagnetic properties of phosphorylated FeSiB@Fe3O4 amorphous soft magnetic composites via thermal decomposition
Source abstract
Abstract
Herein, the phosphorylated FeSiB@Fe 3 O 4 amorphous soft magnetic composites (ASMCs) were designed and fabricated via powder metallurgy technology using high-temperature thermal decomposition. The influence of Fe 3 O 4 content on the microstructure, interface, and electromagnetic properties of phosphorylated FeSiB ASMCs was systematically investigated. Uniformly distributed Fe 3 O 4 magnetic nanoparticles (17.9 nm average size) with high saturation magnetization and low coercivity were synthesized, effectively filling powder gaps and enhancing resistivity from 0.585 Ω m to 1.187 Ω m, which mitigates magnetic dilution and reduces eddy current losses. Three-dimensional loss separation analysis confirms optimal Fe 3 O 4 addition decreases hysteresis, eddy current, and excess losses. However, excessive Fe 3 O 4 causes severe agglomeration, significantly increasing hysteresis loss. As a result, the phosphorylated FeSiB@Fe 3 O 4 ASMCs with 0.2 wt% Fe 3 O 4 nanoparticles achieve the lowest core loss of 118 kW/m 3 (at 100 kHz/50 mT) and high effective permeability of 65. This work provides a novel approach for designing high performance and ultralow loss SMCs for high frequency applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Magnetic Properties and Synthesis of Ferrites · Magnetic properties of thin films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (53)
Show source-provided references
1. Soft magnetic materials for a sustainable and electrified world10.1126/science.aao0195 ↗
2. Amorphous-nanocrystalline alloys: fabrication, properties, and applications10.1016/j.mtadv.2019.100027 ↗
3. Process optimization and magnetic properties of soft magnetic composite cores based on phosphated and mixed resin coated Fe powders10.1016/j.jmmm.2020.166455 ↗
4. Preparation of Fe@Fe3O4/ZnFe2O4 powders and their consolidation via hybrid cold-sintering/spark plasma-sintering10.3390/nano14020149 ↗
5. Formation mechanism and enhanced magnetic properties of Fe-Si/Fe2SiO4 soft magnetic composites transformed from Fe-6.5wt%Si/α-Fe2O3 core-shell composites10.1016/j.jallcom.2019.152803 ↗
6. Effect of adding MgO underlayer on interface behavior and magnetic performance of Fe-6.5Si/(ZnNi)Fe2O4composite prepared by spark plasma sintering10.1016/j.jallcom.2025.178874 ↗
7. Evolution of insulating layers during heat-treatment and their effects on magnetic behavior of Fe–Si–Al based soft magnetic composites10.1016/j.ceramint.2023.02.154 ↗
8. Enhanced corrosion resistance and high-frequency performance of FeSiAl soft magnetic composites via an ultrahydrophobic surface insulation approach10.1016/j.jmst.2025.02.018 ↗
9. Interfacial reaction enhanced liquid‐phase sintering of metal/oxide soft magnetic composite10.1002/adfm.202303951 ↗
10. FeSiCr-Based soft magnetic composites with SiO2 insulation coating prepared using the elemental silicon powder hydrolysis method10.3390/met13081444 ↗
11. Microstructure and magnetic properties of Fe/phosphate soft magnetic composites with layered structure10.1016/j.jallcom.2025.178676 ↗
12. Optimization of sol-gel prepared SiO2 coating and FeSiCr@SiO2 soft magnetic composites based on critical ammonia concentration10.1016/j.matchemphys.2023.127765 ↗
13. Properties optimization of soft magnetic composites based on the amorphous powders with double layer inorganic coating by phosphating and sodium silicate treatment10.3390/met13030560 ↗
14. Effects of heat treatment and compaction pressure on the microstructure and magnetic properties of core-shell structured FeSiBNbCu/SiO2 soft magnetic composites10.1016/j.jallcom.2022.166394 ↗
15. Enhanced magnetic properties and thermal conductivity of FeSiCr soft magnetic composite with Al2O3 insulation layer prepared by sol-gel process10.3390/met13040813 ↗
16. Ultra-low core loss FeSiAl soft magnetic composites with in-situ double oxidation layers of outer Fe3O4 layer and inner super-thin Al2O3/SiO2 hybrid layer10.1016/j.ceramint.2023.05.191 ↗
17. Improvement in core losses for FeSiAl soft magnetic composites induced by powder annealing treatment10.1016/j.jmrt.2023.03.168 ↗
18. High-performance FeSiAl soft magnetic composites achieved by confined solid-state reaction10.1016/j.actamat.2023.119102 ↗
19. Development and characterization of FeSi soft magnetic composites with calcium-silicate-hydrate insulation layers for enhanced magnetic properties10.1016/j.ceramint.2024.11.304 ↗
20. The first experimentally obtained dataset on processing parameters and properties of soft magnetic composites10.1038/s41597-024-04286-w ↗
21. Low core loss combined with high permeability for Fe-based amorphous powder cores produced by gas atomization powders10.1016/j.jallcom.2018.07.055 ↗
22. Magnetic properties of Fe soft magnetic composites with a double-insulating layer comprising Fe3O4 and silicone resin10.1016/j.jallcom.2022.168255 ↗
23. Iron-based soft magnetic composites with Mn-Zn ferrite nanoparticles coating obtained by sol–gel method10.1016/j.jmmm.2012.06.042 ↗
24. Fe-6.5wt%Si soft magnetic composites with significant improvement of magnetic properties by compositing nano-MnZn ferrites10.1016/j.jallcom.2022.164660 ↗
25. Nacre‐inspired, efficient, and multifunctional soft magnetic composites by cold sintering design
26. New Fe-based amorphous soft magnetic composites with significant enhancement of magnetic properties by compositing with nano-(NiZn)Fe2O410.1016/j.jallcom.2016.11.241 ↗
27. Microstructure and magnetic properties of the FeSiBCuNb nanocrystalline soft magnetic composites coated with oil-phase single Fe3O4 nanoparticles by thermal decomposition method10.1016/j.ceramint.2024.06.393 ↗
28. Effect of annealing on magnetic properties of Fe/Fe3O4 soft magnetic composites prepared by in-situ oxidation and hydrogen reduction methods10.1016/j.jallcom.2018.11.184 ↗
29. On the ferrite-controlled iron coupling for enhanced soft magnetic hybrid composites via first-order reversal curves10.1016/j.actamat.2022.118667 ↗
30. Static and dynamic magnetic properties of Co2Z barium ferrite nanoparticle composites10.1007/s10853-005-6312-y ↗
31. Designing Fe-based amorphous alloys with both ultra-high magnetization and ultra-low coercivity through artificial intelligence
32. High effective permeability and low power loss of FeSiAl/Al2O3/ZnO SMC for high frequency application
33. High performance soft magnetic composites with optimized Fe3O4 coating layer using rotary reactor-based sputtering10.1016/j.matdes.2025.114428 ↗
34. Modern soft magnets: amorphous and nanocrystalline materials10.1016/j.actamat.2012.10.040 ↗
35. General properties of power losses in soft ferromagnetic materials10.1109/20.43994 ↗
36. High permeability and low core loss nanocrystalline soft magnetic composites based on FeSiBNbCu@Fe3O4 powders prepared by HNO3 oxidation10.1016/j.matchemphys.2021.124427 ↗
37. High permeability and low loss bioinspired soft magnetic composites with nacre-like structure for high frequency applications10.1016/j.actamat.2019.01.035 ↗
38. Crystal-like microstructural Finemet/FeSi compound powder core with excellent soft magnetic properties and its loss separation analysis10.1016/j.matdes.2020.108769 ↗
39. Improved permeability and core loss of amorphous FeSiB/Ni-Zn ferrite soft magnetic composites prepared in an external magnetic field10.1016/j.jallcom.2021.161335 ↗
40. Interdiffusion mechanism of hybrid interfacial layers for enhanced electrical resistivity and ultralow loss in Fe-based nanocrystalline soft magnetic composites10.1016/j.apsusc.2024.160662 ↗
41. Soft magnetism enhancement and eddy current suppression in bioinspired Iron-based nanocrystalline soft magnetic composites with nacre-like structure10.1016/j.jmst.2024.04.002 ↗
42. FeSiAl soft magnetic composite with double Al2O3 insulation layers for simultaneous high mechanical and magnetic properties10.1016/j.jmst.2024.04.042 ↗
43. Local adaptive insulation in amorphous powder cores with low core loss and high DC bias via ultrasonic rheomolding10.1038/s41467-024-53592-9 ↗
44. Magnetic domain structure and electromagnetic performance of amorphous and nanocrystalline soft magnetic composites treated by magnetic field assisted annealing10.1016/j.jallcom.2024.175995 ↗
45. Improved permeability of Fe based amorphous magnetic powder cores by adding permalloy10.1016/j.jmmm.2017.04.082 ↗
46. Interfacial structure design of FeSiB-based amorphous soft magnetic composites for excellent thermal stability and electromagnetic performance10.1016/j.apt.2024.104620 ↗
47. The influences of matrix materials on the magnetic and mechanical properties of Fe78Si9B13 soft magnetic composites fabricated by injection molding10.1016/j.materresbull.2021.111256 ↗
48. Enhanced high frequency properties of FeSiBPC amorphous soft magnetic powder cores with novel insulating layer10.1016/j.apt.2021.03.017 ↗
49. Fe-based amorphous powder cores with low core loss and high permeability fabricated using the core-shell structured magnetic flaky powders10.1016/j.jmmm.2020.166548 ↗
50. Preparation of FeSiBC soft magnetic composites with excellent magnetic properties and environmental reliability based on mechanofusion method10.1016/j.jmrt.2025.04.135 ↗
51. Poly-para-xylylene enhanced Fe-based amorphous powder cores with improved soft magnetic properties via chemical vapor deposition10.1016/j.matdes.2020.108650 ↗
52. Enhancements of magnetic properties and compacted density for Fe-based amorphous soft magnetic composites via hot compacting under an ultra-low pressure10.1016/j.jallcom.2024.176663 ↗
53. Study of amorphous powder cores with increased magnetic saturation and permeability