Magnetic materials and permanent magnets

CAFC
  • US 5,645,651 A
  • Filed: 06/07/1995
  • Issued: 07/08/1997
  • Est. Priority Date: 08/21/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. A crystalline R(Fe,Co)BXAM compound having a stable tetragonal crystal structure having lattice constants of ao about 8.8 angstroms and co about 12 angstroms, in which R is at least one element selected from the group consisting of Nd, Pr, La, Ce, Tb, Dy, Ho, Er, Eu, Sm, Gd, Pm, Tm, Yb, Lu and Y, X is at least one element selected from the group consisting of S, C, P and Cu, A is at least one element selected from the group consisting of H, Li, Na, K, Be, Sr, Ba, Ag, Zn, N, F, Se, Te and Pb, and M is at least one element selected from the group consisting of Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf and Si.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×