Decay of Metastable State with Account of Agglomeration and Relaxation Processes

Victor Kurasov

doi:10.1155/2016/9468050

Abstract

Theoretical description of the metastable phase decay kinetics in the presence of specific connections between the embryos of small sizes has been given. The theory of the decay kinetics in the presence of relaxation processes is constructed in analytical manner. The m-mers nucleation is investigated and the global kinetics of decay is also constructed in this case analytically.

Highlights

The first-order phase transition kinetics is actively investigated since the publication of the pioneer papers by Wilson [1,2,3] concerning the famous chamber which became the main tool in investigations of the microworld
The range of applications of the first-order phase transition kinetics inevitably grows since the phenomena concerning the selforganization [4, 5] and aggregation [6] become the field of application of ideas lying in the base of the mentioned kinetics
The main content of the theory which predicts the rate of appearance of the embryos of a new phase was published in several papers in the 1930s and 1940s which forms the classical theory of nucleation

Summary

Introduction

The first-order phase transition kinetics is actively investigated since the publication of the pioneer papers by Wilson [1,2,3] concerning the famous chamber which became the main tool in investigations of the microworld. After the creation of the classical nucleation theory the most radical reconsideration was proposed by Lothe and Pound [14] who suggested including into the free energy of a cluster the translational and rotational degrees of freedom This point of view leads to the reconsideration of the rate of nucleation in dozen of orders of magnitudes. There is no doubt that the critical embryo is the central object of the nucleation theory consideration but the constructions of the classical nucleation theory approach are valid only under the “good” behavior of the free energies of embryos of other sizes and kinetic coefficients of ejection and absorption of the molecules for the embryos far from the critical one. We will give the theoretical description of some of them

Weak Relaxation of Seeds in Monomer Nucleation

Accumulation of Several Seeds in the Monomer Nucleation

Main Results