Production of a magnetic alloy material used as a magnetic coolant or magnetostrictive material comprises forming a melt made from an alloy, rapidly cooling, allowing to solidify and producing a connecting phase having a crystal structure

摘要

Production of a magnetic alloy material comprises: forming a melt made from an alloy material having a predetermined composition; rapidly cooling; allowing to solidify to form an alloy of specified composition; and producing a connecting phase having a crystal structure of the sodium zinc type in an amount of approximately 70 vol.%. Production of a magnetic alloy material comprises: forming a melt made from an alloy material having a predetermined composition; rapidly cooling; allowing to solidify to form an alloy of the composition: Fe100-a-b-cREaAbTMc (where RE = La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er or Tm with at least 90 at.% La; A = Al, Si, Ga, Ge or Sn; TM = Sc, Ti, V, Cr, Mn, Co, Ni, Cu or Zn, a = 5-10 at.%; b = 4.7-18 at.%; and c = 0-9 at.%), and producing a connecting phase having a crystal structure of the NaZn13 type in an amount of approximately 70 vol.%. An Independent claim is also included for a magnetic alloy material produced by the above method.