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

1987-02-06

1988-12-27

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148105, 419 12, 419 19, 419 20, 419 29, 419 38, H01F 102

Patent

active

047938749

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: 4601875 (1986-07-01), Yamamoto et al.

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