Nonevaporable getter alloys

Details Nonevaporable getter alloys Nonevaporable getter alloys

1998-04-02

1999-10-05

Sheehan, John

Metal treatment

Stock

Containing over 50 per cent metal, but no base metal

55522, 148421, 420422, 2521816, C22C 3000, C22C 1600

Patent

active

059617500

ABSTRACT:
Nonevaporable getter alloys containing Zr, Co, and a third component A selected from the rare each metals and mixtures thereof, e.g., mischmetal. A most preferred alloy contains about 80.8 wt % Zr, about 14.2 wt % Co, and about 5 wt % A. These alloys are advantageous because they are suitable for general use, i.e., they have a relatively low activation temperature, are capable of sorbing a wide variety of gases, and minimize the environmental and safety risks associated with known nonevaporable getter alloys.

REFERENCES:
patent: 3203901 (1965-08-01), della Porta
patent: 4071335 (1978-01-01), Barosi
patent: 4306887 (1981-12-01), Barosi et al.
patent: 4312669 (1982-01-01), Boffito et al.
patent: 4668424 (1987-05-01), Sandrock
patent: 5294422 (1994-03-01), Kitahara et al.
patent: 5543687 (1996-08-01), Woyke et al.
patent: 5750026 (1998-05-01), Gadkaree et al.

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