Functionally gradient permanent magnet actuators

Details Functionally gradient permanent magnet actuators Functionally gradient permanent magnet actuators

1996-09-30

1998-02-10

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148101, 427127, H01F 100

Patent

active

057164614

ABSTRACT:
A functionally gradient permanent magnet is formed as a slab of alloy comprised of a rare earth-transition metal-boron, and areas of a diffused transition metal positioned at points along the length of at least one surface of the slab of alloy.

REFERENCES:
patent: 3885017 (1975-05-01), Schueler
patent: 4407578 (1983-10-01), Petersen
patent: 4770702 (1988-09-01), Ishigaki et al.
patent: 5295031 (1994-03-01), Wasson
patent: 5464670 (1995-11-01), Ikuma et al.

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