The magnetic properties of an isotropic, epoxy resin bonded magnets made from Pr-Fe-Co-Nb-B powder produced by using the rapid solidification method were investigated. The magnetization reversal process and magnetic parameters were examined by measurements of virgin magnetization curve, major and minor hysteresis loops and sets of recoil curves using LakeShore VSM mounted in 2T electromagnet. The virgin magnetization curve was used in order to determine the differential susceptibility as a function of an applied magnetic field. From the minor hysteresis loops the field dependencies of the coercivity and remanence were derived. It was found that the magnetization reversal process is the combination of irreversible pinning of domain walls and reversible rotation of magnetization vector in single domain grains.

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