The nano composite magnet, the sudden cooling alloy, and these production manners and distinction mannered null composition formula

摘要

As for the nano- composite magnet of this invention, composition formula R _{xQ yM z} (Fe_{1-mT m}) _bal (as for R the rare earth element of 1 kinds or more, as for Q the element of 1 kinds or more which are selected from the group which consists of B and C, as for M, Al, Si and Ti, V, at least being the metal element of 1 where it is selected from the group which consists of Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb kinds, the metal element which includes Ti by all means, as for T was selected from the group which consists of Co and NiThe element of 1 kinds or more,) with it is expressed, constitution ratio x, y, z, and m, respectively, 6x10 atmoic %, 10y17 atmoic %, satisfy 0.5z6 atmoic %, and 0m0.5, hard being the nano- composite magnet which contains magnetic is connected magnetically phase and soft magnetic phase, the description above magnetic phase is formed hard from R₂ Fe₁₄ B type chemical compound, the aforementioned soft magnetic phase -Fe phase and the curie point crystal phase below the 700C above the 610C ( phase) contains mainly.