Effect of annealing conditions on the superconducting properties of nano-sized metallic Au-added Bi1.8Sr2Au0.2Ca1.1Cu2.1Oy(Bi-2212) ceramics

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dc.authoridOZKURT, BERDAN/0000-0002-7837-9773
dc.contributor.authorOzkurt, Berdan
dc.date.accessioned2025-03-17T12:27:36Z
dc.date.available2025-03-17T12:27:36Z
dc.date.issued2020
dc.departmentTarsus Üniversitesi
dc.description.abstractIn this study, the effects of annealing process on the phase formation and electrical and magnetic properties of nano-sized metallic Au-added Bi-2212 ceramics have been investigated. The Bi(1.8)Sr(2)Au(0.2)Ca(1.1)Cu(2.1)O(y)includingx = 0.2 Au content as starting composition was chosen due to the improved transport properties in the Bi-2212 system, as known in the literature. The samples for the post-annealing technique were exposed at different dwell times (10 m, 30 m, 1 h, and 2.5 h) at a fixed temperature of 870 degrees C after the application of normal heat treatment of 850 degrees C for 120 h. The XRD diagrams clearly indicate that a significant part of the phases in all the samples belongs to Bi-2212 phase. SEM results show that all the samples have randomly oriented grain forms as the main characteristic of applied solid-state method. In all cases, the post-annealed samples showed better superconducting properties of Bi-2212 phase, indicating that the increases in the dwell time positively affect its granular polycrystalline character such as inter-connectivity of the grains, the nucleation, and growth of the Bi-2212 phase. Moreover, the sample with dwell time of 2.5 h at 870 degrees C reveals significant enhancement in theM-Hloops compared to the sample with less dwell time, despite the fact that the Bi-2212 phase can easily decompose into secondary phases such as Cu-free and Bi-free due to thermodynamic instabilities of Bi-2212 at temperatures above 860 degrees C. Finally, the intragranular critical current density values (J(c)) have been obtained by using the data from M-H measurements according to the critical Bean model. It has been found that theJ(c)value (16.5 x 10(4) A/cm(2)in 0.15 T at 15 K) of the sample in the dwell time of 2.5 h at 870 degrees C is higher than that of the sample (13.4 x 10(4) A/cm(2)in 0.15 T at 10 K) with the same starting composition reported in the literature.
dc.identifier.doi10.1007/s10854-020-03693-0
dc.identifier.endpage11456
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue14
dc.identifier.scopus2-s2.0-85085626007
dc.identifier.scopusqualityQ2
dc.identifier.startpage11448
dc.identifier.urihttps://doi.org/10.1007/s10854-020-03693-0
dc.identifier.urihttps://hdl.handle.net/20.500.13099/2346
dc.identifier.volume31
dc.identifier.wosWOS:000544091600047
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorOzkurt, Berdan
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science-Materials in Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectArtificial Pinning Centers
dc.subjectMagnetic-Properties
dc.subjectThin-Films
dc.subjectPhase-Formation
dc.subjectGrowth Speed
dc.subjectT-C
dc.subjectTemperature
dc.subjectAg
dc.subjectBi
dc.subjectSubstitution
dc.titleEffect of annealing conditions on the superconducting properties of nano-sized metallic Au-added Bi1.8Sr2Au0.2Ca1.1Cu2.1Oy(Bi-2212) ceramics
dc.typeArticle

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