Plural crystal pulling from a melt in an annular crucible heated

Details Plural crystal pulling from a melt in an annular crucible heated Plural crystal pulling from a melt in an annular crucible heated

1975-09-18

1977-06-28

Emery, Stephen J.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156617SP, 23273SP, 156DIG83, 432156, 432262, B01J 1718

Patent

active

040323900

ABSTRACT:
An annular crucible for containing molten, inorganic crystalline material in an apparatus for growing a plurality of substantially monocrystalline articles including a plurality of spaced forming members disposed in a ring-like arrangement within the crucible, and a pair of annular resistance heating elements concentric with the annular crucible, one element proximate the crucible inner wall and one element proximate the crucible outer wall. In combination with the annular crucible, a thin, ring-shaped resistance heating element substantially conforming in outside and inside diameters to those of the crucible and being disposed at a predetermined distance above the crucible, the ring element having apertures for passing the monocrystalline articles and having means for an independently controllable heat output.

REFERENCES:
patent: 840825 (1907-01-01), Colby
patent: 840826 (1907-01-01), Colby
patent: 2992517 (1961-07-01), Hicks
patent: 3002824 (1961-10-01), Francois
patent: 3015592 (1962-01-01), Leopold
patent: 3240568 (1966-03-01), Derby
patent: 3505025 (1970-04-01), Dessauer
patent: 3692499 (1972-09-01), Andrychuk
patent: 3862228 (1975-02-01), Mlavsky
patent: 3870477 (1975-03-01), Labelle
patent: 3877880 (1975-04-01), Kuhlmann-Schafer

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