Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Patent
1994-02-04
1995-10-03
Mai, Ngoclan
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Metal and nonmetal in final product
419 44, 419 53, 108104, B22F 100
Patent
active
054549981
ABSTRACT:
A permanent magnet is provided which is comprised of, by atomic percent: 10-24% R; 2-28% boron, 0.1-18.12% hydrogen; and balance being M. R is at least one element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y and Sc, and M is at least one metal selected from Fe, Co, Ni, Li, Be, Mg, As, Si, Ti, V, Cr, Mn, Cu, Zn, Ga Ge, Zn, Nb, Mo, Ru, Rh, Pd, Ag, Sb, Te, Hf, Ta, W, Re, Os, Ir, Pt, Au, and Bi. A process for producing the rare earth element-metal-hydrogen boron magnets is also disclosed wherein the magnetic materials are treated in an atmosphere having partial pressures of hydrogen containing gas at temperatures below the phase transformation temperature of the rare earth element-metal hydrides prior to sintering.
REFERENCES:
patent: 4588439 (1986-05-01), Narasimhan et al.
patent: 4597938 (1986-07-01), Matsuura et al.
patent: 4601875 (1986-07-01), Yamamoto et al.
patent: 4663066 (1987-05-01), Fruchart et al.
patent: 4664724 (1987-05-01), Mizoguchi et al.
patent: 4684406 (1987-08-01), Matsuura et al.
patent: 4723994 (1988-02-01), Ovshinsky et al.
patent: 4767450 (1988-08-01), Ishigaki et al.
patent: 4767474 (1988-08-01), Fujimura et al.
patent: 4770723 (1988-09-01), Sagawa et al.
patent: 4793874 (1988-12-01), Mizoguchi et al.
patent: 4802931 (1989-02-01), Croat
patent: 4853045 (1989-08-01), Rozendaal
patent: 4878964 (1989-11-01), Mizoguchi et al.
patent: 4891078 (1990-01-01), Ghandehari
patent: 4981532 (1991-01-01), Takeshita et al.
patent: 5085715 (1992-02-01), Tokunaga et al.
patent: 5091020 (1992-02-01), Kim
patent: 5096512 (1992-03-01), Sagawa et al.
patent: 5114502 (1992-05-01), Bogatin
patent: 5122203 (1992-06-01), Bogatin
patent: 5127970 (1992-07-01), Kim
patent: 5129964 (1992-07-01), Anderson
patent: 5143560 (1992-09-01), Doser
patent: 5147447 (1992-09-01), Takeshita et al.
patent: 5147473 (1992-09-01), Udea et al.
patent: 5162064 (1992-11-01), Kim et al.
patent: 5180445 (1993-01-01), Bogatin
patent: 5227247 (1993-07-01), Bogatin
patent: 5228930 (1993-07-01), Nakayama et al.
patent: 5250206 (1993-10-01), Nakayama et al.
Belov Andrey
Bogatin Jacob G.
Mai Ngoclan
YBM Technologies, Inc.
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