Copper alloy foils

Details Copper alloy foils Copper alloy foils

1999-04-02

2000-07-25

Jones, Deborah

Stock material or miscellaneous articles

All metal or with adjacent metals

Foil or filament smaller than 6 mils

148413, 148434, 360137, 360900, 420469, 420477, 420484, 420492, 420495, 420496, 428544, 428607, 428469, 505171, B21C 3702, C22C 904

Patent

active

060934999

ABSTRACT:
Copper alloy foils are provided having far greater strength and heat resistance than conventional copper foils, and having better productivity, are characterized by a composition comprising, all by weight, from 0.01 to 0.4% Cr, from 0.01 to 0.25% Zr, from 0.02 to 2.0% Zn; and when necessary from 0.05 to 1.8% Fe and from 0.05 to 0.8% Ti; and when further necessary one or more elements selected from the group consisting of Ni, Sn, In, Mn, P, Mg, Al, B, As, Cd, Co, Te, Ag, and Hf in a total amount of from 0.005 to 1.5%; the balance being copper and unavoidable impurities. Inclusions in the copper foil not larger than 10 .mu.m in size, and the inclusions between 0.5 and 10 .mu.m in size number less than 100 pieces/mm.sup.2.

REFERENCES:
patent: 4872048 (1989-10-01), Akutsu et al.

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