Method and apparatus for epitaxial solidification

Details Method and apparatus for epitaxial solidification Method and apparatus for epitaxial solidification

1986-09-29

1987-12-22

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164361, B22D 2704

Patent

active

047141018

ABSTRACT:
Disclosed are a mold, apparatus and method for obtaining articles of controlled crystallographic orientation using solidification from seeds. The starter section of a directional solidification mold is adapted to both contain a seed and receive molten metal which is flowed over and about a seed to heat and partially melt it. A selector section of the mold has reduced cross section compared to the starter section so that only epitaxially solidified metal will be formed in the article section. A barrier layer resistive to molten metal is applied to portions of the seed to facilitate its removal and reuse.

REFERENCES:
patent: 3572419 (1971-03-01), Barrow et al.
patent: 3633648 (1972-01-01), Barrow et al.
patent: 3759310 (1973-09-01), Barrow et al.
patent: 3915761 (1975-10-01), Tschinkel et al.

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