Effect of oxidation on radiation shielding capacity of ZrNbTaMoW Refractory High Entropy Alloys (RHEA) for nuclear reactor applications: Experimental and theoretical assessment

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dc.authoridDikici, Burak/0000-0002-7249-923X
dc.authoridALIM, Bunyamin/0000-0002-4143-9787
dc.contributor.authorSakar, E.
dc.contributor.authorGuler, O.
dc.contributor.authorAlim, B.
dc.contributor.authorGuler, S. H.
dc.contributor.authorDikici, B.
dc.contributor.authorLampke, T.
dc.date.accessioned2024-10-04T18:49:36Z
dc.date.available2024-10-04T18:49:36Z
dc.date.issued2024
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThis study presents the production and comprehensive assessment of a Refractory High Entropy Alloy (RHEA) with a ZrNbTaMoW composition for possible usage nuclear reactor applications. The alloy was synthesized using the mechanical alloying (MA) method, and its radiation properties were examined. Elemental powders of Zr, Nb, Ta, Mo, and W were utilized in equimolar quantities during the 120-hour MA process, conducted under a highpurity Ar atmosphere to prevent oxidation. The obtained HEA was then subjected to a mechano-thermal process to transform it into Refractory High-Entropy Oxide (RHEO) for comparing their radiation-shielding performance under oxide conditions. The characterization of the produced alloys through X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron dispersive spectroscopy (EDS). The photon shielding parameters of the alloys were experimentally obtained for various energies emitted from a 133Ba radioactive source, employing a Canberra UltraLEGe semiconductor detector. Furthermore, theoretical calculations were performed to validate the experimental data and to evaluate the alloys' photon shielding capabilities comprehensively. For this purpose, Phy-X/PSD software was employed to determine mass attenuation coefficients, half-value layer, effective atomic number, and effective electron density. Fast neutron absorption capabilities were determined through the calculation of average absorption cross-sections in the 2-12 MeV energy range. The results showed that the oxidation process significantly diminished the photon absorption capacity of RHEA.en_US
dc.identifier.doi10.1016/j.jallcom.2024.174917
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-85194186561en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2024.174917
dc.identifier.urihttp://hdl.handle.net/20.500.12403/3224
dc.identifier.volume997en_US
dc.identifier.wosWOS:001246688500002en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal of Alloys and Compoundsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectRefractory high entropy alloyen_US
dc.subjectRefractory high entropy oxideen_US
dc.subjectZrNbTaMoWen_US
dc.subjectRHEAen_US
dc.subjectRHEOen_US
dc.subjectPhy-X/PSDen_US
dc.subjectRadiation shieldingen_US
dc.titleEffect of oxidation on radiation shielding capacity of ZrNbTaMoW Refractory High Entropy Alloys (RHEA) for nuclear reactor applications: Experimental and theoretical assessmenten_US
dc.typeArticleen_US

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