Abstract

AbstractUsing in situ optical microscopy we have studied the morphology of the liquid-solid interface during zone melting recrystallization. We have observed a variety of interface morphologies, each of which corresponds to specific types and distributions of subboundaries in the solidified material. We have also observed a variety of morphologies for stationary interfaces. We propose that perturbations in both the stationary and moving liquid-solid interfaces develop, at least in part, due to the spatial gradient in the radiation intensity in the region of the interface.

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