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


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/d018668.pdf


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