C. Dejulian et al., MAGNETIC HARDENING BY CRYSTALLIZATION OF AMORPHOUS PRECURSORS USING VERY HIGH HEATING RATES, Journal of applied physics, 76(10), 1994, pp. 6840-6842
The dependence of the treatment parameters of the coercivity of PrNdFe
B samples prepared by crystallization of melt spun amorphous precursor
s is investigated. The crystallization treatments were carried out at
high temperatures and using very high heating rates (''flash crystalli
zation''). From the analysis of the temperature dependence of the crit
ical field of the samples, it is concluded that this kind of crystalli
zation treatment leads to very fine and homogeneous microstructures wh
ich result in a significant enhancement of the hard magnetic propertie
s.