This paper constructed a geometric model of crystal growth with pulling. On the basis of the model, effects of
processes on crystal shape evolution were clarified. The results shown some effects always used to control the
crystal diameter in practice. Some unusual effects also be shown. Crystal could have a self-stable diameter
and decreasing the convex extent of solid liquid interface could enhance the increase rate of crystal diameter
or reduce the decrease rate of crystal diameter.
Category: Condensed Matter