Soft magnetic nanocomposite with powdered metallic ribbon based on cobalt and polymer matrix

Abstract

Structure, magnetic and mechanical properties of the nanocrystalline composite material of the SILAME ® type were tested. The composite material was obtained by solidification of the nanocrystalline powder obtained in the high-energy grinding of the initially crystallized Co 68Fe 4Mo 1Si 13.5B 13.5 amorphous ribbon with the silicon polymer. The metallic powder was mixed with the silicon polymer in a different weight ratio and next the effect of Co 68Fe 4Mo 1Si 13.5B 13.5 powder weight ratio on the magnetic and physical properties of the composite was investigated. Moreover, the powder was subjected to uniaxial compression, in which the pastille was obtained with the density of ρ = 5.78 g/cm 3 was subjected to the isothermal annealing after examining its magnetic properties. Next, the magnetic properties were compared with the obtained powder, powder after compression, and the compressed powder after annealing. In addition the effect of the high-energy milling conditions were presented on the soft magnetic properties of powder material and the influence of the silicon matrix on the magnetic and mechanical properties of the composite cores.