Apparatus for producing a monocrystal

Details Apparatus for producing a monocrystal Apparatus for producing a monocrystal

1984-05-29

1987-05-19

Lacey, David L.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including specific material of construction

156616A, 156DIG83, 373157, 422254, 432262, C30B 1100, C30B 3500

Patent

active

046666818

ABSTRACT:
According to the invention, an apparatus for producing a monocrystal comprises at least one thermally conductive crucible for receiving the material, a thermally conductive holder having a part able to receive each crucible and extended by a projection, a heater for heating the thermally conductive holder and each crucible containing the material, a drive for the relative displacement of the thermally conductive holder and each crucible containing the material with respect to the said heater and a crystalizer able to bring about the crystallization of one end of the material melted in the heater, once said end has been extracted therefrom, and wherein the projection is positioned so as to check the temperature gradient undergone by the material during the relative displacement.

REFERENCES:
patent: 2214976 (1940-09-01), Stockbarger
patent: 3139653 (1964-07-01), Orem
patent: 3273969 (1966-09-01), Sirgo
patent: 3514265 (1970-05-01), Pastore
patent: 3639718 (1972-02-01), Castonguay et al.
patent: 3796552 (1974-03-01), Robinson et al.
patent: 4521272 (1985-06-01), Gault

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