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Chapter II Solution Growth….
2.22 Steady State Nucleation Rate
Non- steady state nucleation and steady state nucleation processes
are related by the induction period. The induction period is related in some
way to the size and complexity of the critical nucleus and it can be affected by
external influences. Even then, the induction period has been frequently used
as a measure of the nucleation rate. Toschev et al [100] have shown that the
steady state nucleation rate is inversely related to the non-steady state time
lag, the induction period. Several authors [101-103] have made the
assumption that the induction period is devoted to nucleus formation and
considered to be inversely proportional to the steady state nucleation rate.
Where,
From the classical nucleation theory
1
T J
(2.10)
C = Mole fraction of solute in the supersaturated salt solution at
temperature T
C * = Mole fraction of solute in the salt solution saturated at
temperature T
= Interfacial tension of crystal
T = Temperature (K)
101
(2.11)