Abstract
Melt-spun ribbons of Nd-Fe-Co-B-V alloys were prepared by the single roller rapid-quenching method, and the effects of V substitution and substrate surface velocity on the magnetic properties were studied. The magnetic properties of their isotropic bonded magnets made of optimumlyquenched ribbons were also measured. A maximum energy product of 152.7 kJ/m3 was obtained with Nd11Fe72Co8B7.5V1.5 alloy ribbon prepared at a substrate surface velocity of 17.1 m/s. The magnetic properties of these high quality ribbons are isotropic. The maximum energy product obtained in these bonded magnets of Nd11Fe72Co8B7.5V1.5 alloy was 92.8 kJ/m3.
