Abstract

Abstract Aluminium nitride powder was synthesized via a high-temperature gas-phase reaction process of aluminium trichloride with ammonia in flowing nitrogen atmosphere in a graphite reactor at 1600–1800°C. After purification of the reaction product by sublimation of ammonium chloride at 900–1100°C and calcination at 1500–1700°C in nitrogen atmosphere a high-purity aluminium nitride powder with low residual chlorine (

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