SYNTHESIS AND CHARACTERIZATION OF HARD MAGNETIC-MATERIALS - PRFE10.5V1.5NX

The PrFe10.5V1.5 intermetallics and their nitrides were successfully s ynthesized. In terms of magnetocrystalline anisotropy, PrFe10.5V1.5Nx are characteristics of an easy axis from 0 K to Curie temperature, wit h an anisotropy field up to 152.9 kOe at 1.5 K and 108.4 kOe at room t emperature. In combination with a high Curie temperature of 820 K and a large saturation magnetization of 157.46 emu/g at 1.5 K and 142.77 e mu/g at room temperature, these nitrides are favorable for permanent m agnet applications. As a preliminary attempt, magnetic powders based o n PrFe10.5V1.5Nx were obtained with a maximum energy product of 16.0 a nd 28.8 MGOe at room temperature and 1.5 K, respectively. (C) 1997 Ame rican Institute of Physics.