Formation of heavy clusters in ion-irradiated compounds

T. Kavetskyy, M. O. Liedke, M. Butterling, A. Wagner, R. Krause-Rehberg, O. Šauša, L. Meshi, I. Dahan, J. Vacik, P. Horak, D. Fuks, N. Mykytenko, A. Kiv

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Ion-irradiated U(Al,Si) 3 intermetallide, as an example of compounds with significantly different atomic masses of constituting atoms, was studied by slow positron beam spectroscopy in order to clarify the nature of defects accompanying the process of the ion-induced disordering of this material. The studied compound was irradiated with different Ar + ion fluences with energy 30 keV. The formation of so-called heavy clusters (Uranium in this case) has been revealed. Such clusters affect the reliability of materials in nuclear reactors. Ion-induced creation of heavy clusters can provide important properties of similar materials.

Original languageEnglish
Pages (from-to)149-152
Number of pages4
StatePublished - Jun 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd


The authors are thankful to Dr. M. Elsayed (Institut für Physik, Martin-Luther-Universität Halle, Germany) and N. Srinivasan (HZDR) for their help with preparation of samples and for conducting a preliminary measurement, respectively. This study was supported by the joint grant IAEC-UPBC provided by Pazy Foundation. T.K. acknowledges the Ministry of Education and Science of Ukraine (projects Nos. 0116U004737 and 0118U000297 ) for financial support and SAIA (Slovak Academic Information Agency) for scholarship in the IPSAS within the National Scholarship Programme of the Slovak Republic. O.Š. was supported by the Slovak Grant Agency VEGA (project No. 2/0157/17 ) and Slovak Research and Development Agency (project No. APVV-16-0369 ). J.V. and P.H. acknowledge financial support from the Grant Agency of the Czech Republic (project No. 18-21677S ).

FundersFunder number
Slovak Grant Agency VEGA2/0157/17
Slovak Academic Information Agency
Grantová Agentura České Republiky18-21677S
Agentúra na Podporu Výskumu a VývojaAPVV-16-0369
Ministry of Education and Science of Ukraine0116U004737, 0118U000297
PAZY Foundation


    • Heavy clusters
    • Intermetallic alloys and compounds
    • Ion beam technology
    • Positron annihilation


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