AC susceptibility analysis on MgB2 bulk and Ti-sheathed wire superconductors

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dc.authorid0000-0001-9350-3456en_US
dc.authorid0000-0003-2276-6747
dc.contributor.authorÇiçek, Özlem
dc.contributor.authorYetiş, Hakan
dc.contributor.authorGencer, Ali
dc.date.accessioned2021-06-23T19:35:33Z
dc.date.available2021-06-23T19:35:33Z
dc.date.issued2014
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description7th Asian Conference on Superconductivity and Cryogenics (ACASC) -- OCT 23-25, 2013 -- Urgup, TURKEYen_US
dc.description.abstractWe report a comparative study for bulk MgB2 superconductors and monofilamentary Ti/MgB2 wires as functions of the boron powder purity, average particle size of magnesium, and applied pressure. The structural and magnetic characterizations of the bulk samples were performed by means of XRD and AC susceptibility measurements, respectively. We found that the applied pressure did not cause any significant change on the onset transition temperature T-c,T-onset and transition width. This is also confirmed by the calculation of the lattice parameters. On the other hand, T-c,T-onset values were measured as 37.3 K, 38.0 K, and 38.6 K for the samples prepared from the precursor boron powders with purities of 95.2%, >= 95%, and >98%, respectively. However Mg-particle size (Mg1: AlfaAesar Mg powder, avg. par. size: -325 mesh, purity: 99.8%; Mg2: SigmaAldrich Mg powder, avg. par. size: 20-230 mesh, purity: 98%) did not affect the T-c,T-onset but increasing the Mg particle size caused a significant broadening at the superconducting transition width for all precursor boron powder purity levels. Magnetization measurements showed that the critical current density of Ti/MgB2 wire prepared from AlfaAesar Mg powder (avg. par. size: -325 mesh) and Aldrich B powder (amorphous, purity >= 95%) is greater than that of prepared by SigmaAldrich Mg powder (avg. par. size: 20-230 mesh) and Pavezyum B powder (amorphous, avg. par. size: 0,3 mu m (max), purity > 98%) as 2.6 x 10(5) A/cm(2) and 1.4 x 10(5) A/cm(2) at T = 10 K and mu H-0 = 0.5 T, respectively. In addition, SigmaAldrich Mg and Pavezyum B wire sample has a lower pinning force, F-p, value at each temperature. (C) 2014 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.cryogenics.2014.07.004
dc.identifier.endpage147en_US
dc.identifier.issn0011-2275
dc.identifier.issn1879-2235
dc.identifier.scopus2-s2.0-84908355102en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage143en_US
dc.identifier.urihttps://doi.org/10.1016/j.cryogenics.2014.07.004
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7816
dc.identifier.volume63en_US
dc.identifier.wosWOS:000343686700022en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorYetiş, Hakan
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofCryogenicsen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMgB2 Bulk and Wireen_US
dc.subjectBoron Powderen_US
dc.subjectXRDen_US
dc.subjectAC Susceptibilityen_US
dc.subjectMagnetization Measurementsen_US
dc.titleAC susceptibility analysis on MgB2 bulk and Ti-sheathed wire superconductorsen_US
dc.typeConference Objecten_US

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