  A numerical model of 2D finite element in a steady-state level was developed
for the electromagnetic field, heat distribution, and thermal stress expansion
in an oxide Czochralski crystal growth system. The extended model was employed
to compare the impact of different geometries of induction coils and crucibles
in the growth process. Analysis of the results emphasizes the potential of the
modified geometries in alteration of the electromagnetic field and heat
distribution. Consequently, the optimization of crystal/melt interface shape,
thermal stress accumulation, and distribution in the growing crystal can be
achieved. Finally, the proposed approaches for thermal stress calculations were
compared. The outcomes showed a qualitative agreement between two methods of
thermoelastic stress analysis in the calculation of stress distribution in BGO
crystal.
