Permanent magnet material and process for producing the same

Details Permanent magnet material and process for producing the same Permanent magnet material and process for producing the same

1977-02-08

1980-07-01

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

75170, 148 3157, H01F 108

Patent

active

042104718

ABSTRACT:
Disclosed is the addition of Nb, V, Ta or Zr to the ternary alloy of R (rare earth)-Co-Cu for permanent magnet materials, to thereby provide the permanent magnets with increased coercive force, residual magnetization and energy product. The additional elements enables employment of such Cu and Fe contents of the alloy as less than 10% and more than 6%, respectively. These percentages were avoided in the prior art to prevent the reduction of Br and Hc, respectively.

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Strnat, K. et al.; Magnetic Properties of Rare-Earth-Iron Intermetallic Compounds; IEEE Transactions on Mag., pp. 489-493, (9/66).

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