Stability of small vacancy clusters in tungsten by molecular dynamics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00523958" target="_blank" >RIV/68081723:_____/20:00523958 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0168583X19307992?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0168583X19307992?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nimb.2019.11.044" target="_blank" >10.1016/j.nimb.2019.11.044</a>
Alternative languages
Result language
angličtina
Original language name
Stability of small vacancy clusters in tungsten by molecular dynamics
Original language description
The vacancies produced in collision cascades of irradiated metals form voids and vacancy clusters. The stability of vacancy clusters and voids is usually studied by kinetic Monte-Carlo methods. We investigated the stability of these vacancy defects at high temperatures using molecular dynamics and recent embedded-atom method potential. We confirm that the vacancy cluster dissociation is thermally activated. We have obtained dissociation energies and characteristic temperatures, both increasing with the number of vacancies and tending to saturate at 3.5 eV and 1200 K, respectively, for large vacancy clusters. Our results qualitatively agree with Monte-Carlo results, but predict somewhat smaller values for both the dissociation energy and characteristic temperature.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Instruments & Methods in Physics Research Section B
ISSN
0168-583X
e-ISSN
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Volume of the periodical
464
Issue of the periodical within the volume
FEB
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
4
Pages from-to
56-59
UT code for WoS article
000510313800011
EID of the result in the Scopus database
2-s2.0-85076246493