INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Structural and magnetic properties of Fe78 Si9 B13 (% at.) powders embedded in a polymeric matrix: Powder Metallurgical process
Autor/es:
PAGNOLA, M.; SACCONE, F. D.; BARONE, M.; M. MALMORIA
Lugar:
Buenos Aires
Reunión:
Conferencia; 6th International Conference on Science and Technology of Composite Materials", COMAT 2015, 7-8 May 2015 ? Buenos Aires, Argentina; 2015
Institución organizadora:
FI-UBA
Resumen:
Ribbons with composition of Fe78Si9B13 were produced by a rapid solidification technique (melt-spinning). After grinding them in a ball miller, we obtained powders with typical particle sizes in the range of 100-200 μm. The crystallization kinetic of these amorphous precursors was followed by differential scanning calorimetry (DSC) up to 600ºC, while X-ray diffraction (XRD) was employed to determine structure and phase composition. Typical magnetization of annealed samples is around 240 emu/g and their coercivities are below 5 Oe. Composite cores were made by embedding the base powders in a non metallic polimeric matrix at different powder volume fractions. In this work, we show a comparison between magnetic properties of the composites with those corresponding to the original powders. It is also discussed the possible application of the obtained cores as rotors of electrical machines.