High performance rare earth-iron giant magnetostrictive...

Details High performance rare earth-iron giant magnetostrictive... High performance rare earth-iron giant magnetostrictive...

2006-01-03

2006-01-03

Sheehan, John P. (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C148S102000, C148S103000

Reexamination Certificate

active

06982010

ABSTRACT:
The present invention relates to a high performance rare earth-iron giant magnetostrictive material of the formula (Tbx1Dyx2Smx3Hox4Rx5)(Sy1Py2Fe1-y1-y2-y3Ty3)Qobtained by using an industry grade pure iron, instead of physically pure iron such as electrolyzed pure iron or hydrogen reduced pure iron, as iron source. The invention relates also to a method of preparing the giant magnetostrictive material.

REFERENCES:
patent: 3871835 (1975-03-01), Bibring et al.
patent: 4208225 (1980-06-01), Kurz et al.
patent: 4308474 (1981-12-01), Savage et al.
patent: 4921551 (1990-05-01), Vernia et al.
patent: 6273966 (2001-08-01), Snodgrass et al.
A Dictionary of Metallurgy, A. D. Merriman, 1958, p. 326.

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