Combustion synthesis of rod-like alpha-SiAlON seed crystals

abstract

Rod-like single-phase crystals of Y-alpha-SiAlON were synthesized by combustion of Si, Al, alpha-SiO4, SiO2 and Y2O3 powders. SEM observation of crystals, separated by chemical etching (HNO3/HF=2:1) followed by ultrasonic agitation in ethanol showed rod-like crystals, assigned to almost pure and well crystallized alpha-SiAlON. (C) 2004 Elsevier B.V. All rights reserved.

keywords

MECHANICAL-PROPERTIES; MICROSTRUCTURE; CERAMICS; SIAION

subject category

Materials Science; Physics

authors

Fu, RL; Chen, KX; Xu, X; Ferreira, JMF

our authors

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