“…High coercivity (H ci % 8,6 kOe at RT and H ci % 59 kOe at 20 K) in rapidly quenched Nd 40 Fe 60 alloys was reported by Croat [2] [P. 125, 3 P 3161]. The coercive force of the as-cast Nd-rich Nd-Fe alloys is associated with the metastable anisotropic A 1 phase which is formed during crystallization and cooling below the eutectic temperature by decomposition of the Fe-rich regions within the metastable eutectic [4] [P. 215], [5] [P. 5971], [6] [P. L1], [7] [P. 169], [8] [P. 209], [9] [P. 245], [10] [P. L5], [11] [P. 273], [12] [P. 97], [13] [17] [P. 2483] high H ci of the melt-spun Fe-Nd alloys results from the different nonequilibrium hard magnetic phases. The size of the clusters or nanocrystallites in rapidly quenched Fe-Nd alloys is extremely small and its composition analysis was beyond the limits of TEM capacity at the time.…”