Modeling of Temperature Effects on the Formation of Tracks of Swift Heavy Ions in Silicon Carbide

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F24%3A00617093" target="_blank" >RIV/61389021:_____/24:00617093 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1134/S1027451024700319" target="_blank" >https://link.springer.com/article/10.1134/S1027451024700319</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S1027451024700319" target="_blank" >10.1134/S1027451024700319</a>

Result language

angličtina

Original language name

Modeling of Temperature Effects on the Formation of Tracks of Swift Heavy Ions in Silicon Carbide

Original language description

Abstract: A hybrid multiscale model consisting of two coupled modules is used to study the effect of irradiation temperature on the kinetics of the formation of swift heavy ions tracks in silicon carbide (6H-SiC). Excitation of the electronic and atomic subsystems of the material is simulated using the Monte Carlo TREKIS-3 code. The profile of energy transferred to the atomic lattice is used as the initial conditions for molecular-dynamics simulations (using the LAMMPS package) of structural changes in the material near the trajectory of the swift heavy ion. Using the example of Bi-ion irradiation with an energy of 710 MeV, it is found that increasing irradiation temperature leads to an increase in the energy density transferred to the lattice. This induces rapid disordering of the core structure of the track at timescales on the order of 0.25 ps. At irradiation temperatures below 1800 K, subsequent recrystallization of the amorphous region within the cooling track leads to complete restoration of the material structure. At temperatures above the threshold of 1800 K, mass transfer, determined by the ejection of dislocations from the track core, results in the formation of nanoscale voids with a diameter of approximately 3 nm along the ion trajectory. The simulation results are useful for assessing the radiation resistance of silicon carbide under extreme irradiation conditions and for formulating ideas and designing new experiments on high-temperature SiC irradiation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Journal of Surface Investigation-X-Ray Synchrotron and Neutron Techniques

ISSN

1027-4510

e-ISSN

1819-7094

Volume of the periodical

18

Issue of the periodical within the volume

3

Country of publishing house

RU - RUSSIAN FEDERATION

Number of pages

7

Pages from-to

683-689

UT code for WoS article

001277999100006

EID of the result in the Scopus database

2-s2.0-85198657720