Aluminium nitride (AlN) powder was prepared by the solid-gas reaction of al
uminium sulfide (Al2S3) with ammonia. The process of conversion of Al2S3 to
AlN was investigated by XRD and Al-27 magic-angle spinning NMR spectroscop
y. The formation of ALN commenced at ca. 550 degrees C, which is the lowest
temperature in the ALN formation through the solid-gas and Liquid-gas reac
tions. (C) 2000 Elsevier Science B.V. All rights reserved.