Abstract
An analytical description of the interrelation of depletion, segregation and decomposition of a binary alloy in a nanosystem is presented. Size-induced shift of the decomposition cupola appears to be a sum of two terms. The first (related to depletion caused by new phase formation) is inversely proportional to the size R to the power of ¾. The second (related to segregation at external surface) represents the traditional 1/R dependence. Size-induced ‘splitting’ of the decomposition cupola is also predicted and analytically described.
Acknowledgements
Work was supported by the Ministry of Education and Science of Ukraine, by Ukrainian State Fund for Fundamental Research (grant Ф40.7/040) and by the Russian Foundation for Basic Research (grant 11-08-90439).