Preparation, structure and magnetic properties of spherical FeSiB/Al2O3 soft magnetic composites prepared in a magnetic field

Amorphous FeSiB/Al 2 O 3 soft magnetic composites were successfully fabricated in this work by applying an external magnetic field perpendicular or parallel to the magnetic toroidal surface, aiming to investigate the influences of magnetic field orientation on their structures and magnetic propertie...

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Bibliographic Details
Published in:Journal of materials science 2024-04, Vol.59 (15), p.6354-6364
Main Authors: Zhu, Qijing, Zhang, Chaoyun, Peng, Xiaoling, Li, Jing, Wu, Qiong, Xu, Jingcai, Hong, Bo, Wang, Xinqing, Ge, Hongliang
Format: Article
Language:English
Subjects:
Aluminum oxide
Anisotropy
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Composites & Nanocomposites
Crystallography and Scattering Methods
Electrons
Magnetic fields
Magnetic permeability
Magnetic properties
Materials Science
Morphology
Permeability
Polymer Sciences
Reluctance
Sheet molding compounds
Solid Mechanics
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Summary:Amorphous FeSiB/Al 2 O 3 soft magnetic composites were successfully fabricated in this work by applying an external magnetic field perpendicular or parallel to the magnetic toroidal surface, aiming to investigate the influences of magnetic field orientation on their structures and magnetic properties. The results indicate that amorphous FeSiB particles can form chain-like clusters aligned parallel to the direction of the applied magnetic field, which effectively reduces the magnetic reluctance along this direction. The magnetic toroidal with parallel orientation exhibits the highest effective magnetic permeability of 23.8 and a magnetic loss of 43.693 kW/m 3 at 590 kHz and 10mT, which is superior to both the non-oriented and perpendicularly oriented ones due to its optimized microstructure that reduces magnetic reluctance along the working circuit.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-024-09597-2