Abstract
The effect of some geometrical and physical parameters of the crucible-liquid-crystal system on the shape of the crystal/melt interface during the growth of single crystals by the Czochralski method is studied by physical simulation. The critical rotation rates at which a flat interface is obtained are established for different crystal diameters, model liquid viscosities and temperatures difference between the crucible walls and the crystal. The data obtained are generalized by a relationshhip of dimensionless numbers. This relationship is checked in Czochralski growth of bismuth germanium oxide (Bi 12GeO 20) single crystals is found to be satisfied in experiments with a high-temperature melt.
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