GROWTH OF Al2O3 WHISKERS BY VAPOUR-PHASE REACTIONS.

Article abstract of DOI:10.1007/BF01233126

Needle-like or wool-like Al//2O//3 whiskers can be grown on a substrate by hydrolysis of aluminium fluoride vapour. Effects of growth conditions on morphology of the crystals and growth processes of the whisker were investigated and optimum growth conditions of whiskers was examined. Adequate vapour pressure conditions of the reactant gases for the growth of the wool-like whisker were determined. Aluminum oxyfluoride is assumed to be the most probable intermediate species for the growth. A variety of crystal morphologies are also shown and described with respect to experimental conditions.