Size distribution and growth rate of crystal nuclei near critical supercooling in small volumes

Kód výsledku v IS VaVaI

RIV/68378271:_____/17:00483535 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Size distribution and growth rate of crystal nuclei near critical supercooling in small volumes

Popis výsledku v původním jazyce

Kinetic equations are numerically solved to determine the size distribution of crystal nuclei, F, formed in Ni droplets near critical supercooling. The maximum size of nuclei r max was determined from F as a function of time and the growth rate of the largest particles v=dr max /dt. In the sufficiently large volumes of the parent phase, the growth rate of particles v reaches some minimum value and then increases with time to the growth rate of the flat interface limit. In smaller volumes, only a certain maximum size of nuclei r max is reached, which quickly increases with supercooling. In consequence of depletion of the parent phase, the growth of the largest particles is stopped in small volumes. The growth of nuclei occurs only when the number of critical nuclei is sufficiently high.

Název v anglickém jazyce

Size distribution and growth rate of crystal nuclei near critical supercooling in small volumes

Popis výsledku anglicky

Kinetic equations are numerically solved to determine the size distribution of crystal nuclei, F, formed in Ni droplets near critical supercooling. The maximum size of nuclei r max was determined from F as a function of time and the growth rate of the largest particles v=dr max /dt. In the sufficiently large volumes of the parent phase, the growth rate of particles v reaches some minimum value and then increases with time to the growth rate of the flat interface limit. In smaller volumes, only a certain maximum size of nuclei r max is reached, which quickly increases with supercooling. In consequence of depletion of the parent phase, the growth of the largest particles is stopped in small volumes. The growth of nuclei occurs only when the number of critical nuclei is sufficiently high.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

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

Projekt

LD15004: Kinetika nukleace krystalů v uzavřených systémech

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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