In-situ TEM deformation of free-standing thin films and molecular dynamics simulations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F21%3A00548723" target="_blank" >RIV/68081723:_____/21:00548723 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/5.0067513" target="_blank" >http://dx.doi.org/10.1063/5.0067513</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0067513" target="_blank" >10.1063/5.0067513</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In-situ TEM deformation of free-standing thin films and molecular dynamics simulations

Popis výsledku v původním jazyce

Mechanical properties of nanocrystalline films have been found to differ from typical features exhibited in bulk coarse grained materials. To gain insight for the casuses of higher yield and tensile strength and lower ductility measured in these films, experiments allowing direct observations of the deformation mechanisms such as in-situ transmission electron microscopy tensile testing as well as molecular dynamics computer simulations can be employed. A restricted time and size scale of molecular dynamics simulations results in simulations using strain rates several orders higher than strain rates and sample sizes smaller that generally used in real deformation experiments. In-situ tensile experiments of free-standing 50 nm thick nanocrystalline Al films have been realized and results were compared with the molecular dynamic simulation designed to approach the conditions of performed experiment in a reasonable computational time.

Název v anglickém jazyce

In-situ TEM deformation of free-standing thin films and molecular dynamics simulations

Popis výsledku anglicky

Mechanical properties of nanocrystalline films have been found to differ from typical features exhibited in bulk coarse grained materials. To gain insight for the casuses of higher yield and tensile strength and lower ductility measured in these films, experiments allowing direct observations of the deformation mechanisms such as in-situ transmission electron microscopy tensile testing as well as molecular dynamics computer simulations can be employed. A restricted time and size scale of molecular dynamics simulations results in simulations using strain rates several orders higher than strain rates and sample sizes smaller that generally used in real deformation experiments. In-situ tensile experiments of free-standing 50 nm thick nanocrystalline Al films have been realized and results were compared with the molecular dynamic simulation designed to approach the conditions of performed experiment in a reasonable computational time.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings

ISBN

978-0-7354-4138-5

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

030002

Název nakladatele

Amerikan Institute of Physics

Místo vydání

Melville

Místo konání akce

Štrbské Pleso

Datum konání akce

23. 6. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000859097600046