Method of producing Cu - Ag alloy based conductive material

Details Method of producing Cu - Ag alloy based conductive material Method of producing Cu - Ag alloy based conductive material

1993-09-15

1996-07-09

Simmons, David A.

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

164476, 164488, C22F 108

Patent

active

055340873

ABSTRACT:
A method for producing a Cu--Ag alloy based conductive material containing about 10% to about 20% at % Ag, that involves the steps of continuously casting the alloy into a rod followed by quickly cooling the rod, cold-working the rod to a reduction in area of 80% or more, then heat treating the cold-worked rod at a temperature of 250.degree. C. to 350.degree. C. for 1 hour or more to form a heat-treated rod, and thereafter cold-working the heat-treated rod to a reduction in area of 90% or more as defined based on the cast rod to produce conductive material having a high strength of 700 MPa or more and conductivity of 75% IACA or more.

REFERENCES:
patent: 5322574 (1994-06-01), Sakai et al.
Metals Handbook; 9th Ed., vol. 15 "Continuous Casting" by Robert D. Pehlke p. 308, 1988.
Appl. Phys. Lett. 59(23), pp. 2965-2967, Dec. 2, 1991.
J. Japan Inst. Metals, 55(12), pp. 1328-1391, Dec. 20, 1990.
Nikkei New Materials No. 106, pp. 42-43, Nov. 25, 1991.
Report of the meeting (spring) of the Japan Institute of Metals (published on Mar. 19, 1990).
Report of the meeting (autumn) of the Japan Institute of Metals (published on Sep. 10, 1990).

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