PREDICTION OF EARLY-GROWTH AND LATE-GROWTH MORPHOLOGIES OF IONIC-CRYSTALS

Comparison of early- and late-growth crystal morphologies of several w ater-soluble ionic materials suggests that early rapid growth is accom panied by a specific type of morphological distortion. This distortion , involving a change in the relative growth rate of just one growth di rection, is consistent with our previously proposed mechanism for the transition from normal, polyhedral crystal growth to dendritic growth. Interpretation of this morphological distortion was aided by morpholo gy prediction methods based on computed attachment energies.