Magnetic materials and permanent magnets

Details Magnetic materials and permanent magnets Magnetic materials and permanent magnets

H - Electricity

01

F

148/5, 75/7.1

H01F 1/053 (2006.01) C22C 1/04 (2006.01) H01F 1/057 (2006.01)

Patent

CA 1316375

- 68 - ABSTRACT MAGNETIC MATERIALS AND PERMANENT MAGNETS Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of Fe-B-R intermetallic compound(s) of tetragonal system, and sintered anisotropic permanent magnets consisting essentially of, by atomic percent, 8 - 30 % R (at least one of rare earth elements inclusive of Y), 2 - 28 % B and the balance being Fe with impurities. Those may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) providing Fe-B-R-M type materials and magnets.

431730

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