Analysis of hypervelocity impacts: the tungsten case
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00356542" target="_blank" >RIV/68407700:21230/22:00356542 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1741-4326/ac42f6" target="_blank" >https://doi.org/10.1088/1741-4326/ac42f6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1741-4326/ac42f6" target="_blank" >10.1088/1741-4326/ac42f6</a>
Alternative languages
Result language
angličtina
Original language name
Analysis of hypervelocity impacts: the tungsten case
Original language description
The atomistic mechanisms of damage initiation during high velocity (v up to 9 km s(-1), kinetic energies up to 200 keV) impacts of W projectiles on a W surface have been investigated using parallel molecular-dynamics simulations involving large samples (up to 40 million atoms). Various aspects of the high velocity impacts, where the projectile and part of the target material undergo massive plastic deformation, breakup, melting, and vaporization, are analyzed. Different stages of the penetration process have been identified through a detailed examination of implantation, crater size and volume, sputtered atoms, and dislocations created by the impacts. The crater volume increases linearly with the kinetic energy for a given impactor; and the total dislocation length (TDL) increases with the kinetic energy but depends on the size of the impactor. We found that the TDL does not depend on the used interatomic potential. The results are rationalized based on the physical properties of bcc W.
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Fusion
ISSN
0029-5515
e-ISSN
1741-4326
Volume of the periodical
62
Issue of the periodical within the volume
2
Country of publishing house
AT - AUSTRIA
Number of pages
12
Pages from-to
1-12
UT code for WoS article
000739050000001
EID of the result in the Scopus database
2-s2.0-85123916933