Statistical Analysis of Atomic Collisions during Metal Vapour Nucleation in Nobel Gas Medium
Authors
Anna Evgenevna Korenchenko
South Ural State University
Alexander Gennadevich Vorontsov
South Ural State University
Boris Rafailovich Gel’chinskii
Institute of Metallurgy, Ural Branch of RAS, Ekaterinburg
Keywords:
metal clusters, nucleation, molecular dynamics
Abstract
The dynamic evaluation of cluster growth probability in supersaturated non-equilibrium medium by statistical analysis of molecular-dynamics calculations was made. The molecular dynamics simulation of copper vapour condensation in argon medium was performed. The possibility of using kinetic molecular theory relations for non-equilibrium conditions was tested. The results show that the number of collisions and scattering cross section agree well with classical values for Ar–Ar, Ar–Cu and Cu–Cu pairs. It was found that the mean lifetime of small clusters (n < 15) does not depend on density of Cu and Ar but it depends on temperature. The research resulted in a new algorithm of cluster growth probability.
Author Biographies
Anna Evgenevna Korenchenko, South Ural State University
Dr. Sc. (Physics and Mathematics), Professor, Optic and Spectroscopy Department
Alexander Gennadevich Vorontsov, South Ural State University
Cand. Sc. (Physics and Mathematics), Associate Professor, General and Theoretical Physics Department
Boris Rafailovich Gel’chinskii, Institute of Metallurgy, Ural Branch of RAS, Ekaterinburg
