Process for producing a single crystal article

Details Process for producing a single crystal article Process for producing a single crystal article

1985-06-21

1987-01-06

Bernstein, Hiram H.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156620, 156DIG65, C30B 108

Patent

active

046344918

ABSTRACT:
A process for producing a single crystal alloy object comprising providing a preform having coarse columnar crystals in a discard portion, isolating, by cutting, one of the columnar crystals to form a seed crystal connected to metal in a product portion of said preform, zone annealing the thus prepared preform to produce single crystal structure and discarding the discard portion of the preform.

REFERENCES:
patent: 4386976 (1983-06-01), Benn et al.
patent: 4475980 (1984-10-01), Rhemmer et al.
patent: 4519870 (1985-05-01), Hatsuzawa
Aust, The Art and Science of Growing Crystals, Wiley & Sons, Gilman-Ed. 1963, pp. 452-454.

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