Soft magnetic properties in bulk nanocrystalline alloys fabricated by a shock-wave sintering

Soft magnetic properties in bulk nanocrystalline Fe–Cu–Nb–Si–B alloys consolidated by shock-wave sintering have been studied. The lowest coercive field H c of 7.1 A m −1 was achieved for the bulk sample prepared by nanocrystallizing bulk amorphous alloys, which was consolidated from amorphous Fe–Cu–Nb–Si–B alloy ribbons. This value is about one-sixth of H c for the samples prepared by nanocrystallizing bulk amorphous alloys consolidated from amorphous Fe–Cu–Cr–Nb–Si–B alloy powder. The nanocrystallization of the bulk alloys consolidated from the amorphous ribbons by shock-wave sintering provides bulk nanocrystalline alloys with good soft magnetic properties.