Micro/nanomechanical properties of top-seeded melt grown YBCO single crystals determined using depth sensing indentation

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dc.contributor.authorKölemen, Uğur
dc.contributor.authorYeşilkanat, Cafer Mert
dc.contributor.authorYılmaz, Fikret
dc.contributor.authorDoğan, Fatih
dc.contributor.authorUzun, Orhan
dc.date.accessioned2026-07-03T06:59:37Z
dc.date.available2026-07-03T06:59:37Z
dc.date.issued2025
dc.departmentAÇÜ, Eğitim Fakültesi, Matematik ve Fen Bilimleri Eğitimi Bölümü
dc.description.abstractMechanical properties of the bulk YBa2Cu3O7-x (YBCO) single crystal superconductor, prepared by using the Top Seeded Melt Growth (TSMG) method, were determined. Property measurements were conducted by the nanoindentation method under various loads and the microindentation method at different temperatures. Hardness (H) and reduced elastic modulus (Er) values were calculated by using the Oliver–Pharr method. According to hf/hmaxvalues found from load- displacement curves, there is a sink in behavior around outer rim of the indents that was confirmed by atomic force microscopy (AFM) analysis. Nanoindentation analyses conducted on upper section, middle section and subsection revealed that all three regions exhibited similar mechanical characteristics. As a result of the microhardness tests, the thermal activation energy of the samples was calculated as 0.0796 eV. It is expected that the results of the mechanical properties obtained in the study will be useful for practical applications of TSMG YBCO superconductors such as flux-trapped magnets exposed to various mechanical stresses.
dc.identifier.doi10.1016/j.mtcomm.2025.114068
dc.identifier.issn23524928
dc.identifier.scopus2-s2.0-105019938224
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://hdl.handle.net/11494/6239
dc.identifier.volume49
dc.identifier.wosWOS:001600176300006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.institutionauthorYeşilkanat, Cafer Mert
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofMaterials Today Communications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectAFM
dc.subjectMicroindentation
dc.subjectNanoindentation
dc.subjectTSMG
dc.subjectYBCO
dc.titleMicro/nanomechanical properties of top-seeded melt grown YBCO single crystals determined using depth sensing indentation
dc.typeArticle

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