High energy product rare earth-iron magnet alloys

Details High energy product rare earth-iron magnet alloys High energy product rare earth-iron magnet alloys

1982-09-03

1989-07-25

Sheehan, John P.

Metal treatment

Stock

Magnetic

420 83, 420121, 420416, 420442, 420455, 420581, H01F 104

Patent

active

048510580

ABSTRACT:
The hard magnetic properties, including intrinsic coercivity, remanence and energy product of rapidly quenched, rare earth-transition metal alloys has been substantially increased by the addition of suitable amounts of the element boron. The preferred rare earth constituent elements are neodymium and praseodymium, and the preferred transition metal element is iron.

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Koon et al, "Magnetic Properties of Amorphous and Crystallized (Fe.sub.0.82 B.sub.0.18).sub.0.9 Tb.sub.0.5 La.sub.0.5 ", App. Phys. Lett., vol. 39, No. 10, pp. 840-842, Nov. 15, 1981.
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