Authors:
Ángel Sota Muñoz (1,2), Nerea Burgos (1,2), Valentina Zhukova (3), Mihail Ipatov (3,4), Jose Manuel Martín (1,2), Julián González (3), Mikel Osinalde (5)
1- CEIT-Basque Research and Technology Alliance (BRTA), Manuel Lardizabal 15, 20018 Donostia/San Sebastián, Spain
2- Universidad de Navarra, Tecnun, Manuel Lardizabal 13, 20018 Donostia/San Sebastián, Spain
3- Department of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country, UPV/EHU, Manuel Lardizabal 3, 20018 Donostia/San Sebastián, Spain
4- SGIker (Magnetic Measurements), University of the Basque Country, Tolosa 72, 20018 Donostia/San Sebastián, Spain
5- Elesa, Abendaño 191, Zarautz, 20800, Spain
Abstract:
FeSiBNbCu amorphous powder has been fabricated via gas atomization. Two size fractions with 7:1 average particle size ratio have been mixed in a proportion of 73:27 vol.% respectively to improve particle packing. As a result, compact density has been increased up to ~10%, thus increasing magnetic saturation in the same proportion. The magnetic permeability of the compacts pressed from the mix increased a 70% compared with the compacts from one-size fraction powders. The power losses of mixed particle compacts consolidated at 800 MPa without heat treatment were 692 mW/cm3 (at 100 kHz and B=50 mT), whereas they were 548 mW/cm3 (at 100 kHz and B=50 mT) in the case of the same powder annealed at 535 ºC for 30 min.
DOI:
https://doi.org/10.59499/EP235765316