Copper-iron-nickel composite material for electrical and electro

Details Copper-iron-nickel composite material for electrical and electro Copper-iron-nickel composite material for electrical and electro

1987-03-23

1989-04-18

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Laterally noncoextensive components

420 92, 420458, 420487, 420582, B32B 1502

Patent

active

048226939

ABSTRACT:
The present invention relates to copper-iron-nickel composite materials having utility in electronic applications because of their low coefficients of expansion and high thermal conductivities. Composite materials in accordance with the present invention consist essentially of about 10% to 80% copper and the balance iron plus nickel with the ratio of iron to nickel being in the range of from about 1.5:1 to about 2.0:1. Preferred composite materials have an iron to nickel ratio in the range of from about 1.6:1 to about 1.9:1.

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