A review of nucleation models in various systems

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00639141" target="_blank" >RIV/68378271:_____/25:00639141 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

A review of nucleation models in various systems

Original language description

We summarize homogeneous and heterogeneous nucleation for vapor-liquid, vapor-solid, and liquid-solid phase transitions. In all cases, the formation of clusters plays an important role in the nucleation process. Nuclei of a new phase (supercritical clusters) form after overcoming the nucleation barrier W* at the critical size i*. In binary nucleation, W* corresponds to the saddle point when W reaches a minimum during the formation of nuclei. For heterogeneous nucleation on a foreign surface, W is influenced not only by interfacial energies but also by surface shape. A special case of heterogeneous nucleation is nucleation on active centers, where the nucleation barrier is lower, thus making active centers preferred for nucleation. However, the formation of nuclei also depends on kinetics. In small encapsulated systems, the depletion of the parent phase, i. e., a decrease in supersaturation or a decrease in the number of atoms in the parent phase, influences the formation of nuclei. In very small systems, there is an insufficient number of monomers, so new nuclei cannot form. In the case of nucleation in a supersaturated vapor or solution within an encapsulated system, a decrease in supersaturation increases W, which influences the formation of nuclei.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/EH23_020%2F0008525" target="_blank" >EH23_020/0008525: Innovative laser and scintillation materials for modern applications</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů