Induction time in nucleation kinetics

The full expression for the induction time in homogeneous nucleation given by Wu has been evaluated for small critical nucleus sizes. It is shown, using parameters relevant to the Cu-Co alloy system, that Wu's analytical approximation for large critical nucleus sizes holds to quite small values ( similar to 10 atoms). A more elaborate expression from Shneidman and Weinberg was also examined; it yields slightly different predictions.