Volume and pressure of helium bubbles inside liquid Pb16Li. A molecular dynamics study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00340203" target="_blank" >RIV/68407700:21230/20:00340203 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1741-4326/ab73c2" target="_blank" >https://doi.org/10.1088/1741-4326/ab73c2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1741-4326/ab73c2" target="_blank" >10.1088/1741-4326/ab73c2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Volume and pressure of helium bubbles inside liquid Pb16Li. A molecular dynamics study

Popis výsledku v původním jazyce

The behaviour of helium impurities inside metals has been well studied in the last 30 years, however, little attention has been devoted to helium atoms inside liquid metals. Here we have investigated the nucleation and coalescence processes of helium atoms inside liquid eutectic lithium–lead alloys using atomistic simulations. Several key findings regarding He bubbles inside liquid PbLi eutectic are presented. The radius versus the number of atoms has been calculated in the temperature range 600–1000 K. The trend can be fitted and likely extrapolated to larger bubbles (micrometer size). The value of thermal expansion of He bubbles is given as well and compared to the thermal expansion of bulk He. The pressure inside He bubbles has been calculated as a function of bubble size. Finally, the importance of accurate interatomic potentials for the He–metal interaction is discussed.

Název v anglickém jazyce

Volume and pressure of helium bubbles inside liquid Pb16Li. A molecular dynamics study

Popis výsledku anglicky

The behaviour of helium impurities inside metals has been well studied in the last 30 years, however, little attention has been devoted to helium atoms inside liquid metals. Here we have investigated the nucleation and coalescence processes of helium atoms inside liquid eutectic lithium–lead alloys using atomistic simulations. Several key findings regarding He bubbles inside liquid PbLi eutectic are presented. The radius versus the number of atoms has been calculated in the temperature range 600–1000 K. The trend can be fitted and likely extrapolated to larger bubbles (micrometer size). The value of thermal expansion of He bubbles is given as well and compared to the thermal expansion of bulk He. The pressure inside He bubbles has been calculated as a function of bubble size. Finally, the importance of accurate interatomic potentials for the He–metal interaction is discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Nuclear Fusion

ISSN

0029-5515

e-ISSN

1741-4326

Svazek periodika

60

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

000521192400001

EID výsledku v databázi Scopus

2-s2.0-85082302582