INTERACTION BETWEEN GROWING CRYSTALS AND INCLUSIONS IN THE MELT

The interaction of crystals growing from the melt by continuous and lateral growth mechanisms with solid particles, bubbles and concentration inhomogeneities was studied experimentally. The dependence of critical growth rate on radius for both mechanisms is compared with the Chernov-Temkin theory. Morphological effects resulting from the capture of particles and gas bubbles were studied under isothermal conditions. Concentration inhomogeneities in the melt disperse the dendritic structure. © 1990.