Copper crystal and process

Details Copper crystal and process Copper crystal and process

1976-04-16

1978-04-25

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75108, 75109, 75251, B22F 900, C22B 1512

Patent

active

040860825

ABSTRACT:
A new article of manufacture consisting of a crystal of copper which is macrocrystalline, unicrystalline, columnar and consists of a single prime particle bounded by at least two sets of distinguishable planes which are determined by the internal crystal structure. These planes are cube faces, i.e., (100) type planes in the crystal and define surface facets which are parallel, non-coplanar, crystallographic step-growth surfaces. The crystal orientation is such that a (110) plane is perpendicular to the long axis of the crystal with a (111) plane lying perpendicular to the smallest cross-section thereof.

REFERENCES:
patent: 1263727 (1918-04-01), Anderson
patent: 3060013 (1962-10-01), Harvey
patent: 3529954 (1970-09-01), Cech
patent: 3798026 (1974-03-01), Milner et al.
patent: 3860509 (1975-01-01), Emmett, Jr.
patent: 3902865 (1975-09-01), Leavenworth et al.
Hackh's Chemical Dictionary 4th ed.; McGraw Hill, N.Y. p. 724 (1972).
Bunescu, et al.; "Conference On Electrotechnical Materials," Bucharest, Rumania; (1970) pp. 1-12.
Sard, R., et al.; "Mechanical Properties of Single Crystal Copper Electrodeposits"; Plating (2/1969), pp. 157-162.
Mehl, E.; "Production of Metal Powders" Metal Treatment and Drop Forging (Summer, 1950) pp. 118-126.

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