ABSTRACT After a formulation of the mass transport equations in a crystal growth melt, we discuss the existence of a solute boundary layer ahead of the solidification front and the connection with the stagnant film model of Burton, Prim and Schlichter. We then proceed to show that a simple scaling analysis can be fruitfully used to capture the physics of the problem. Finally, we review some of the major theoretical, numerical and experimental works in the fields of axial, radial and microsegregation and conclude with a few practical tips on how to obtain homogeneous crystals.
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