High coercivity Nd2Fe14B/α-Fe nanocomposite magnets

Study on Magnetic Behavior of Nd8Fe84Ti2B6 Nanocomposite by FORC Diagram

“…From our available experiments we find that the processing window is pretty narrow in optimizing magnetic properties for nanocrystallites prepared directly by low-speed melt spinning. Uniformly distributed and refined microstructure can be achieved through crystallization of the amphormos matrix produced by quenching 5,6 . Based on this concept, a substantial amount of work has been done to optimize the nanocomposite microstructure.…”

The influence of short time heat treatment on the structural and magnetic behaviour of Nd2Fe14B/α-Fe nanocomposite obtained by mechanical milling

“…By Ga addition and an appropriate annealing in pulse magnetic field of melt-spun Nd 2 Fe 14 B/␣-Fe nanocomposite, Zhang et al obtained a refinement of microstructure and an increase of the magnetic properties [17]. Other researches present some improvement of magnetic properties by Co, Zr [18] or Nb [19] substitutions. In rapidly quenched Nd-Fe-B ribbons, Hirosawa et al [20] studied the influence of the cooling rate and of the substitution elements, such as Cr and Cu, on the Fe 3 B/Nd 2 Fe 14 B formation during rapid solidification.…”