Magnetic properties of Sm5Fe17 melt-spun ribbon

Abstract

The relationship between the structures and magnetic properties of Sm5Fe17 melt-spun ribbons was studied. The melt-spun ribbons obtained by annealing of amorphous Sm5Fe17 melt-spun ribbon consisted of the Sm5Fe17 phase when annealed at 973K for 0h (i.e., when the furnace was immediately turned off after heating) or the Sm5Fe17 phase together with a small amount of the SmFe12 phase when produced by annealing at 973K for 1h. The coercivity of the annealed Sm–Fe melt-spun ribbons was strongly dependent on the annealing conditions. The maximum coercivity of the annealed Sm5Fe17 melt-spun ribbons exceeded 36kOe.