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Ain single crystals
Authors:G.A. Slack  T.F. McNelly
Affiliation:Research and Development Center, General Electric Company, Schenectady, New York 12301, USA
Abstract:
Single crystals of aluminum nitride up to 1 cm long and 0.3 in diameter have been grown by a sublimation-recondensation technique at about 2250°C. The starting material is prepared by the direct reaction of aluminum and nitrogen at 1850°C. The crystals are grown at a rate of 0.03 cm/hr. in sealed tungsten crucibes in an rf heated tungsten furnace. They are amber in color and have the wurtzite structure.
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