Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Crystallizer
Patent
1988-03-16
1990-12-25
Andrews, Melvyn J.
Chemical apparatus and process disinfecting, deodorizing, preser
Physical type apparatus
Crystallizer
1566161, 1566164, 165 47, C30B 3500
Patent
active
049801333
ABSTRACT:
This invention provides a method and apparatus for controlled crystal growth. The apparatus involves two tandemly aligned heat pipes separated by a conductive sleeve. The heat pipes establish two different isothermal temperature zones while the sleeve defines a gradient zone. A crystallization zone is located in this gradient zone. The method for controlled growth of a crystal involves lowering an ampoule through the gradient zone at an effective rate.
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D. E. Cox & F. K. Fong, "Growth of Single Crystals of Anhydrous Lanthanide Halides", Journal of Crystal Growth, vol. 20, 1973, pp. 233-238.
Andrews Melvyn J.
LTV Aerospace & Defense Company
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