초록 ▼

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 ge

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.

대표청구항 ▼

[ What is claimed is:] [1.] A nonevaporable getter alloy comprising zirconium, cobalt, and a third component A, said alloy having a composition, in terms of weight percentage, which when plotted on a ternary composition diagram falls within a polygon defined by the points:a) 81 wt % Zr, 9 wt % Co, a

[ What is claimed is:] [1.] A nonevaporable getter alloy comprising zirconium, cobalt, and a third component A, said alloy having a composition, in terms of weight percentage, which when plotted on a ternary composition diagram falls within a polygon defined by the points:a) 81 wt % Zr, 9 wt % Co, and 10 wt % A;b) 68 wt % Zr, 22 wt % Co, and 10 wt % A;c) 74 wt % Zr, 24 wt % Co, and 2 wt % A; andd) 88 wt % Zr, 10 wt % Co, and 2 wt % A;where A is selected from the group consisting of rare earth metals, yttrium, lanthanum, and mixtures thereof, said nonevaporable getter alloy having a maximum combustion temperature in air that does not exceed about 740.degree. C.