Method of preparation of chrysoberyl and beryl single crystals

Details Method of preparation of chrysoberyl and beryl single crystals Method of preparation of chrysoberyl and beryl single crystals

1978-06-15

1980-08-19

Scovronek, Joseph

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG61, 156DIG64, 156DIG78, 156DIG96, 422250, B01J 1710, B01J 1716

Patent

active

042182824

ABSTRACT:
Single crystals of chrysoberyl and beryl are prepared in a process in which the rods are formed of the desired composition and the rods are heated in a controlled atmosphere using infra-red rays. The infra-red rays are focussed upon a restricted portion of a rod to form a melt zone which is moved along the rod. A seed crystal of the desired type is preferably used. Fluxes are unnecessary and twinning is avoided.

REFERENCES:
patent: 3086856 (1963-04-01), Siebertz
patent: 3234135 (1966-02-01), Ballman et al.
patent: 3341302 (1967-09-01), Flanigen et al.
patent: 3817710 (1974-06-01), Mizutani et al.
patent: 3912521 (1975-10-01), Cline et al.
patent: 3943324 (1976-03-01), Haggerty
patent: 4046617 (1977-09-01), Fletcher
patent: 4058699 (1977-11-01), van Vloten
patent: 4093502 (1978-06-01), Hirabayashi et al.

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