Samarium-cobalt-copper-iron-titanium permanent magnets

Details Samarium-cobalt-copper-iron-titanium permanent magnets Samarium-cobalt-copper-iron-titanium permanent magnets

1977-03-08

1980-07-08

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

75170, 148103, H01F 104

Patent

active

042115850

ABSTRACT:
A permanent magnet comprising a composition containing a Sm-Co compound and consisting essentially of 23 to 30 wt. % Sm, 0.2 to 1.5 wt. % Ti, 9 to 13 wt. % Cu, 3 to 12 wt. % Fe and the balance Co which has very high energy products more than about 20 MGOe and excellent rectangular hysteresis loop characteristics which are attained without the necessity of an aging treatment.

REFERENCES:
patent: 3617260 (1971-11-01), Detert
patent: 3801312 (1974-04-01), Steinitz
patent: 3947295 (1976-03-01), Tawara et al.
patent: 3977917 (1976-08-01), Fujimura et al.
patent: 3982971 (1976-09-01), Yamaka et al.
patent: 4135953 (1979-01-01), Nagel et al.
Inomata, K. et al. "Sm-Co-Cu-Fe-Ti Magnets", Japanese Journal of Applied Physics, vol. 17, No. 11, 11/78, pp. 1993-1996.

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