Fig. 8.

Nucleation rate as a function of supersaturation (a); different nucleation rates depending on whether nucleation proceeds homogeneously (C), heterogeneously on a foreign phase with variable nucleation efficiency (B), or heterogeneously on a foreign phase with uniform nucleation efficiency (A) (b); nucleation rate as a function of the interfacial tension between the crystal and the fluid (c); and the size of a critical nucleus as a function of supersaturation estimated for a hypothetic system by means of vibrational frequency calculations (d).