Theory of heterogeneous nucleation for vapor undergoing a gradual metastable state formation

Fedor M Kuni, Aleksandr K Shchekin, Alexander P Grinin
2001 Physics Uspekhi  
Major recent advances in the theoretical study of heterogeneous nucleation on macroscopic wettable centers of different nature are reviewed in the context of the classical scheme which uses the thermodynamics of a new phase nucleation to calculate the key kinetic characteristics of nucleation. The review centers on the kinetics of heterogeneous nucleation under conditions where a metastable state of the initial phase gradually forms Ð a situation in which the factors supporting the phase
more » ... ng the phase transition to the metastable state and then deepening the phase into the metastability region also remain active after the intense phase transition has begun. The formulation and control of the conditions of consistency for applying all the Contents 6.1 Disjoining pressure and the work of wetting of an insoluble nucleus; 6.2 Formation of a film uniform in thickness and constraints on the coefficient of condensate spreading and the size of the condensation nucleus; 6.3 Thermodynamic characteristics of nucleation on insoluble wettable nuclei in the prethreshold region of vapor metastability 7. Kinetics of nucleation on insoluble wettable nuclei 360 7.1 Kinetic characteristics of nucleation on insoluble wettable nuclei; 7.2 Parametrization of the characteristic time of vapor metastable state formation; 7.3 Method for the calculation of kinetic characteristics of nucleation on insoluble wettable nuclei under free-molecule growth of supercritical droplets; 7.4 Method for the calculation of kinetic characteristics of nucleation on insoluble wettable nuclei under diffusive growth of supercritical droplets; 7.5 Accounting for the polydispersity of insoluble wettable nuclei 8. The theory of nucleation on partially soluble wettable nuclei and nuclei of mixed composition 365 8.1 Sufficient condition for the applicability of the theory to the case of complete nucleus dissolution in a droplet; 8.2 Maximum of the condensate chemical potential in a droplet under incomplete nucleus dissolution; 8.3 Accounting for an insoluble nucleus component 9. Conclusions 368 References 369
doi:10.1070/pu2001v044n04abeh000783 fatcat:lgkuuqovhzgcflmwabd2vmvrtu