Magnetic monitoring of the disproportionation process in Nd–Fe–B-based materials

Kinetics of nanoscale precipitation in Ni–Fe–Al alloys: A magnetic monitoring approach

“…Thus, it could be stated that precipitation as monitored by isothermal magnetization does not show an apparent incubation period. This behavior was previously encountered in studies utilizing a similar magnetic monitoring approach and was attributed to the fact that incubation takes place during the heat-up stage obscuring its observation [15]. 4 shows the time and temperature dependence of magnetization rates during isothermal measurements in VSM.…”

“…Later, this approach was used to understand crystallization in Ni-P precursor films from the amorphous state [14]. Recently, using similar magnetic monitoring approaches, the disproportionation reaction observed in cast rare-earth transition metal alloys [15,16] and crystallization kinetics of Fe-based soft magnetic amorphous alloys were examined [17]. To the best of our knowledge, kinetics of such precipitation reactions occurring at the nanoscale has not been examined via magnetic measurements for intermetallic alloys.…”

Improvement of microstructure and magnetic properties of Nd–Fe–B alloys by Nb and Co additions

“…Previous studies [10,15] demonstrated that, for most NdFeB-type alloys, it was possible to produce a recombined structure with a grain size of 0.3 mm. In the present work, the recombined grain size appeared to be reduced further (the average grain size was 0.25 mm) and this can be attributed to the Nb addition, which is known to inhibit grain growth [16][17][18].…”