Study on the anisotropic growth of rod-like Yb alpha-SiAlON crystals prepared by combustion synthesis

abstract

In this paper, single-phase Yb alpha-SiAlON powder with rod-like crystals was fabricated by combustion synthesis. The microstructural development of the rod-like alpha-SiAlON crystals was studied, and anisotropic grain growth was observed. Furthermore, the growth mechanism of the rod-like alpha-SiAlON crystals was investigated, and the experimental results indicated that during the anisotropic grain growth, the fast growth plane was the basal plane in the hexagonal crystal lattice.

keywords

GRAIN-GROWTH; CERAMICS; MICROSTRUCTURE; ALPHA-SI3N4; POWDERS

subject category

Materials Science

authors

Liu, GH; Chen, KX; Zhou, HP; Ferreira, JMF

our authors

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