Homogeneous nucleation and crystallization model of aluminium droplet based on isothermal DSC analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00564765" target="_blank" >RIV/68378271:_____/22:00564765 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s10973-022-11497-z" target="_blank" >https://doi.org/10.1007/s10973-022-11497-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-022-11497-z" target="_blank" >10.1007/s10973-022-11497-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Homogeneous nucleation and crystallization model of aluminium droplet based on isothermal DSC analysis

Popis výsledku v původním jazyce

The aluminum (Al) sample was studied using differential scanning calorimetry (DSC) at non-isothermal and isothermal conditions. The first non-isothermal measurements were performed by melting the Al sample and then cooling it down at rates 2 to −20 ◦ C/min to detect the crystallization temperature T C ≈ 642 ◦ C. On the contrary, the crystallization event was repeatedly detected by the isothermal DSC after several tens of minutes at the temperature T ≈ 653 to −654 ◦ C. The kinetic equations of Al crystal nucleation were solved numerically, to determine the size distribution of nuclei and the nucleation rate. Numerical solution of kinetic nucleation equations showed that a decrease in Al atoms in the liquid droplet was predominantly a consequence of the formation of the subcritical clusters. The number of nuclei reached a quasi-stationary size distribution at a sufficiently long time, for which an analytical approach for the number of critical nuclei was determined.

Název v anglickém jazyce

Homogeneous nucleation and crystallization model of aluminium droplet based on isothermal DSC analysis

Popis výsledku anglicky

The aluminum (Al) sample was studied using differential scanning calorimetry (DSC) at non-isothermal and isothermal conditions. The first non-isothermal measurements were performed by melting the Al sample and then cooling it down at rates 2 to −20 ◦ C/min to detect the crystallization temperature T C ≈ 642 ◦ C. On the contrary, the crystallization event was repeatedly detected by the isothermal DSC after several tens of minutes at the temperature T ≈ 653 to −654 ◦ C. The kinetic equations of Al crystal nucleation were solved numerically, to determine the size distribution of nuclei and the nucleation rate. Numerical solution of kinetic nucleation equations showed that a decrease in Al atoms in the liquid droplet was predominantly a consequence of the formation of the subcritical clusters. The number of nuclei reached a quasi-stationary size distribution at a sufficiently long time, for which an analytical approach for the number of critical nuclei was determined.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/EF16_019%2F0000760" target="_blank" >EF16_019/0000760: Fyzika pevných látek pro 21. století</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

1588-2926

Svazek periodika

147

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

10

Strana od-do

13089-13098

Kód UT WoS článku

000841697100001

EID výsledku v databázi Scopus

2-s2.0-85136251225