Accession Number : ADD018668

Title :   Ammonothermal Growth of Chalcogenide Single Crystal Materials

Descriptive Note : Patent Application, Filed 5 Nov 97

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Purdy, Andrew P

PDF Url : ADD018668

Report Date : 05 Nov 1997

Pagination or Media Count : 21

Abstract : Single crystals of binary and ternary compounds of alkaline earth and a chalcogen, with or without a transition element, are grown by: charging a reaction vessel with an alkaline earth chalcogenide, with or without a transition element or a halide thereof, an acidic mineralizer, and anhydrous ammonia to where the fill factor in the reaction vessel is 30-95%; sealing the reaction vessel to the outside atmosphere; heating the contents of the reaction vessel to a temperature of at least 300 deg C until single crystal materials visible to the eye form in the reaction vessel; cooling the contents of the reaction vessel; and extracting the single crystal materials from the reaction vessel.

Descriptors :   *PATENT APPLICATIONS, *SINGLE CRYSTALS, *CHALCOGENS, TRANSITION METALS, MATERIALS, COMPOSITE MATERIALS, COOLING, AMMONIA, HALIDES, TERNARY COMPOUNDS, ALKALINE EARTH COMPOUNDS, BINARY COMPOUNDS

Subject Categories : Inorganic Chemistry
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE