Inclusion of a nonzero volume fraction of the new phase in the kinetics of crystallization of melts

Autor: D. A. Grigor’ev, S. A. Kukushkin, A. V. Koropov
Rok vydání: 1999
Předmět:
Zdroj: Technical Physics. 44:786-791
ISSN: 1090-6525
1063-7842
DOI: 10.1134/1.1259348
Popis: The growth rate of nuclei is calculated in self-consistent mean field approximation with allowance for the screening of a selected nucleus from heat fluxes, and an expression is obtained for the screening length of the heat flux. It is shown that the growth rate of a nucleus depends on the degree of crystallization of the melt. The influence on the crystallization process of collisions of the particles as they coalesce into a polycrystalline solid is investigated. A refinement of the size distribution function in the thermal Ostwald ripening stage is obtained.
Databáze: OpenAIRE