Experimental and numerical investigation of flux trapping in bulk YBCO under different permanent magnet configurations

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dc.authorid0000-0002-8847-1880
dc.contributor.authorUzun, Oguzhan
dc.contributor.authorAbdioglu, Murat
dc.contributor.authorOzturk, U. Kemal
dc.date.accessioned2026-02-28T12:17:54Z
dc.date.available2026-02-28T12:17:54Z
dc.date.issued2025
dc.departmentBayburt Üniversitesi
dc.description.abstractThis study investigates flux trapping in bulk YBaCuOx (YBCO) high-temperature superconductors (HTS) under various permanent magnet configurations (PMCs) through both experimental and numerical methods. A finite element method (FEM) based on the H-formulation of Maxwell's equations is employed to simulate the HTS-PM interaction, showing good agreement with experimental results in peak trapped flux density values. The maximum trapped flux densities for PMC-1, PMC-2, PMC-3, and PMC-4 were measured as 207 mT, 359 mT, 392 mT, and 478 mT, respectively, demonstrating the significance of PMC design in optimising flux trapping in HTS materials. Enhanced flux trapping was observed with configurations including additional permanent magnets, such as PMC-2 and PMC-4, yielding trapped flux efficiencies of 77.5 % and 55.0 %, respectively. Obtained results in trapped flux efficiency are very impressive as compared to a value of 23 % trapped flux efficiency in literature in which a solenoid magnet with a 3 T peak value of magnetic flux density is used to trap a magnetic field in the HTS. The magnetic flux trapping methodology of this research is very effective for magnetic bearing applications with self-stabilisation in which high magnetic fields are not needed since it doesn't need any magnetic field sources with complex structures, such as coils, to facilitate the magnetic field trapping in the HTSs.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBITAK) [122F432]; Scientific Research Projects Coordination Unit of Karadeniz Technical University [FDK-2024-16025]
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkiye (TUBITAK), with project number 122F432 and the Scientific Research Projects Coordination Unit of Karadeniz Technical University, with project No. FDK-2024-16025.
dc.identifier.doi10.1016/j.jallcom.2025.180710
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-105004065902
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2025.180710
dc.identifier.urihttps://hdl.handle.net/20.500.12403/5999
dc.identifier.volume1028
dc.identifier.wosWOS:001485656100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofJournal of Alloys And Compounds
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260218
dc.subjectPermanent magnet
dc.subjectTrapped field
dc.subjectHTS
dc.subjectNumerical modelling
dc.titleExperimental and numerical investigation of flux trapping in bulk YBCO under different permanent magnet configurations
dc.typeArticle

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