Czochralski pulling of monocrystalline lanthanum orthogallate

Details Czochralski pulling of monocrystalline lanthanum orthogallate Czochralski pulling of monocrystalline lanthanum orthogallate

1988-03-04

1990-07-31

Roy, Upendra

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156621, 156DIG89, 423598, 430569, B01J 1718, C04B 3546

Patent

active

049448331

ABSTRACT:
Monocrystalline lanthanum orthogallate grown along a predetermined crystallographic direction in the form of a single crystal of a size greater than 1 cm in diameter/width and at least 10 cm in length is described. Also described is a class of perovskite type monocrystalline compositions which are readily grown from a pure melt along a predetermined crystallographic direction. Such perovskite-type monocrystalline compositions have the following formulae:

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G. Sallavuard et al.-Lanthanide Monogallates; Mar. 1969.
C. R. Academy of Sciences, Paris; pp. 1050-1053.
M. Mizuno et al.-Phase Diagram of the System Gallium Trioxide-Lanthanum Oxide at High Temps.; Gov't. Industrial Research Institute, 1985; pp. 295-300.
D. Lefebvre et al.-Substituted Lanthanum Hexagallates a . . . Substrates; Materials Research Bulletin, vol. 22; pp. 1039-1045 (1987).
G. F. Ruse et al.-Growth of Neodymium Gallium Oxide Crystals; Journal of Crystal Growth 29 (1975), pp. 305-308.

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