Investigation of interior seed effects on levitation force in Melt-Grown YBCO superconductors by experimental and numerical methods

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dc.contributor.authorOzturk, Ufuk Kemal
dc.contributor.authorAbderrahmane, Babe Cheikh
dc.contributor.authorUzun, Oguzhan
dc.contributor.authorAbdioglu, Murat
dc.contributor.authorGuner, Sait Baris
dc.contributor.authorQueval, Loic
dc.date.accessioned2026-02-28T12:17:47Z
dc.date.available2026-02-28T12:17:47Z
dc.date.issued2025
dc.departmentBayburt Üniversitesi
dc.description.abstractThis study introduces a novel Top-Interior Multi-Seeding Melt Growth (TI-MSMG) technique for fabricating highperformance YBCO bulk superconductors and explanations some physical background based on FEM modelling. The depth of the interior seed was gradually changed as 0, 2 and 4 mm (samples S0, S2 and S4, respectively) from the upper surface of the samples. By incorporating an interior seed into the precursor pellet, the TI-MSMG method enables systematic control over grain morphology and critical current density distribution. Magnetic levitation and guidance forces were measured using a three-axis force measurement system, and a twodimensional finite element method (FEM) model based on the H-formulation of Maxwell's equations was developed to simulate the electromagnetic behaviour of the superconductors with different seed positions. Experimental and modelling results reveal that samples incorporating an interior seed (S2) exhibit significantly enhanced levitation and guidance forces compared to S0 and S4, attributable to improved inter-domain interactions and morphological consistency, so a better current coupling. The numerical simulations accurately reproduced the experimental findings, confirming the validity of the modelling approach. These findings indicate that the TI-MSMG process not only addresses some limitations of conventional top-seeding methods but also enhances levitation force performance through optimization of interior seed depth, thereby enabling more efficient and tailored designs for high-temperature superconducting systems such as magnetic levitation, energy storage, and superconducting motors.
dc.description.sponsorshipRecep Tayyip Erdogan University Scientific Research Projects Coordination Unit [11081]; [FBA-2025-1964]
dc.description.sponsorshipThis study was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under project number 122F432, Karadeniz Technical University Scientific Research Projects Coordination Unit under project numbers FDK-2024-16025 and FBA-2024-11081, and Recep Tayyip Erdogan University Scientific Research Projects Coordination Unit under project number FBA-2025-1964.
dc.identifier.doi10.1016/j.cryogenics.2025.104224
dc.identifier.issn0011-2275
dc.identifier.issn1879-2235
dc.identifier.scopus2-s2.0-105020979413
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.cryogenics.2025.104224
dc.identifier.urihttps://hdl.handle.net/20.500.12403/5979
dc.identifier.volume152
dc.identifier.wosWOS:001613365600002
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCryogenics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260218
dc.subjectGuidance Force
dc.subjectHTS
dc.subjectInterior seed
dc.subjectLevitation Force
dc.subjectTSMG (top-seeded melt growth)
dc.titleInvestigation of interior seed effects on levitation force in Melt-Grown YBCO superconductors by experimental and numerical methods
dc.typeArticle

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