Authors:
Soundariya Ravi (1), Mária Fáberová (1), Radovan Bureš (1), Vladyslav Kostiuk (1), Vasily Milyutin (1), Róbert Džunda (1), Zuzana Birčáková (1)
1- Institute of Materials Research, Slovak Academy of Sciences, Košice, Slovakia
Abstract:
Soft magnetic composites are materials based on ferromagnetic particles surrounded by secondary electrical insulating components. The geometric size&shape of the ferromagnetic particles are crucial for the functional properties of consolidated SMC materials. Modern electronic and engineering applications create pressure for the development of materials applicable at increasingly higher frequencies of alternating magnetization. An increase in the frequency stability of the magnetic properties can be achieved by reducing the size of the ferromagnetic particles and/or by increasing the thickness of the electrical insulation layer. In any case, permeability and magnetic flux density decrease. The subject of this research is the preparation of FeSiAl particles realized by several methods of resonant acoustic and ball milling. Spherical and flake-like ferromagnetic particles with different distributions of Si and Al were prepared. Coercivity as well as changes in density and compressibility were studied depending on the structural and geometrical characteristics of the powders.
DOI:
https://doi.org/10.59499/EP246281454
