Heterogeneous nucleation in an aluminum droplet at low supercooling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00603371" target="_blank" >RIV/68378271:_____/24:00603371 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1742-6596/2931/1/012017/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/2931/1/012017/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/2931/1/012017" target="_blank" >10.1088/1742-6596/2931/1/012017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heterogeneous nucleation in an aluminum droplet at low supercooling

Popis výsledku v původním jazyce

The crystallization of the aluminum (Al) sample was detected by the differential scanning calorimetry (DSC) at the undercooling ∆T C ≈ 18.3 ◦ C. At the undercooling ∆T = 6.8 ◦ C < ∆T C , the crystallization event was detected after a time delay of several minutes. The nucleation kinetics on an inner droplet surface is analyzed by numerically solving of the nucleation equations to determine the number of nuclei formed in the Al droplet sample of the mass m 0 = 9.91 mg at ∆T = 6.8 ◦ C. The depletion of the Al melt due to the formation of crystal nuclei is taken into account. The nucleation rate for different cluster sizes tends to a quasi-stationary limit which is lower than predicted by the classical nucleation model. Homogeneous nuclei in the droplet volume are formed earlier than heterogeneous ones, but at longer times (several minutes) the heterogeneous nucleation prevails.

Název v anglickém jazyce

Heterogeneous nucleation in an aluminum droplet at low supercooling

Popis výsledku anglicky

The crystallization of the aluminum (Al) sample was detected by the differential scanning calorimetry (DSC) at the undercooling ∆T C ≈ 18.3 ◦ C. At the undercooling ∆T = 6.8 ◦ C < ∆T C , the crystallization event was detected after a time delay of several minutes. The nucleation kinetics on an inner droplet surface is analyzed by numerically solving of the nucleation equations to determine the number of nuclei formed in the Al droplet sample of the mass m 0 = 9.91 mg at ∆T = 6.8 ◦ C. The depletion of the Al melt due to the formation of crystal nuclei is taken into account. The nucleation rate for different cluster sizes tends to a quasi-stationary limit which is lower than predicted by the classical nucleation model. Homogeneous nuclei in the droplet volume are formed earlier than heterogeneous ones, but at longer times (several minutes) the heterogeneous nucleation prevails.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/EH22_008%2F0004596" target="_blank" >EH22_008/0004596: Senzory a detektory pro informační společnost budoucnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Journal of Physics: Conference Series

ISBN

—

ISSN

1742-6588

e-ISSN

—

Počet stran výsledku

6

Strana od-do

012017

Název nakladatele

IOP Publishing

Místo vydání

Bristol

Místo konání akce

Tatranská Štrba

Datum konání akce

9. 9. 2024

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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