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Research was conducted to examine the theory of interaction between a solid inclusion in a liquid with nonuniform viscosity with an advancing solidification front. A model was used in which the weight of the particle, its buoyancy and that of viscous drag were essential. Focus was made on the velocities of the inclusion and of the solidification front move in the same direction. The investigation into the inclusion behavior was carried out in terms of three dimensionless variables.

Examines the influence of high-density current pulses on the structure and superconducting properties of high-temperature superconductor ceramics. Implication of an increase in the pulsed current density for structural changes; Occurrence of large grains melting after attaining a certain threshold value; Outcome of the breaking of intergranular contacts.