Permanent magnetic alloy and method of manufacturing the same

Details Permanent magnetic alloy and method of manufacturing the same Permanent magnetic alloy and method of manufacturing the same

1985-09-09

1987-05-12

Sheehan, John P.

Metal treatment

Stock

Magnetic

148331, 420 83, 420121, H01F 104

Patent

active

046647244

ABSTRACT:
A permanent magnetic alloy essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 50 to 300 ppm by weight of oxygen and the balance of iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.
An alloy having this composition has a high coercive force .sub.I H.sub.C and a high residual magnetic flux density and therefore has a high maximum energy product.

REFERENCES:
patent: 4588439 (1986-05-01), Narasimhan et al.

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