Prestress imposing treatment of magnetostrictive material

Details Prestress imposing treatment of magnetostrictive material Prestress imposing treatment of magnetostrictive material

1999-02-19

2000-10-31

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148101, H01F 100

Patent

active

061396486

ABSTRACT:
Magnetostrictive material such as Terfenol-D undergoes annealing treatment y heating for a limited period of time to an elevated temperature below the melting point, followed by cooling to a preferred magnetic state in which a compressive stress generated and applied during treatment is retained in the treated material as a built-in prestress.

REFERENCES:
patent: 4308474 (1981-12-01), Savage et al.
patent: 4378258 (1983-03-01), Clark et al.
patent: 5453291 (1995-09-01), Sasahara et al.
Journal of Applied Physics--Jun. 1, 1998, pp. 7279-7281.
6th Int'l Conference on New Actuators--Jun. 17, 1998, pp. 1-4.

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