Improvement in levitation force performance of bulk MgB2 superconductors through coronene powder adding

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dc.authorid57206025149
dc.authorid54787476700
dc.authorid56513554300
dc.authorid54390730500
dc.authorid6602971445
dc.contributor.authorErdem O.
dc.contributor.authorAbdioglu M.
dc.contributor.authorGuner S.B.
dc.contributor.authorCelik S.
dc.contributor.authorKucukomeroglu T.
dc.date.accessioned20.04.201910:49:12
dc.date.accessioned2019-04-20T21:43:12Z
dc.date.available20.04.201910:49:12
dc.date.available2019-04-20T21:43:12Z
dc.date.issued2017
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThe effect of coronene (C24H12) addition on the levitation force properties of MgB2 superconductor has been investigated for the first time in this study. The polycrystalline disk-shaped MgB2 + y wt % C24H12 samples (y = 0, 2, 4, 6, 8, 10), were synthesized by a pellet/closed tube method at 850 °C under Ar atmosphere, after hot pressing at 200 °C. XRD analysis indicates a decrease in lattice parameters of coronene added samples and confirms substitution of carbon in boron sites. An increase in lattice strain and a decrease in grain size are observed due to the carbon substitution effect. Vertical and lateral levitation force measurements under zero-field-cooled and field-cooled regimes were carried out at different temperatures of 20, 25 and 30 K. It was found that the coronene addition significantly increases the high-field critical current density of MgB2. The Jc values were obtained as 4.6 × 103 Acm?2 and 1.3 × 104 Acm?2 for pure and 4 wt % coronene added samples at 20 K and 4 T. In addition, the levitation force measurements show that 4 wt % coronene adding is very effective in increasing both the vertical and lateral levitation force performances at 20 K. The maximum levitation force for 4 wt % coronene added sample corresponds to 7.58 N/g whereas the reference sample shows 6.73 N/g at 20 K in ZFC regime. The results point out that the hydrocarbon of C24H12 is an effective carbon-containing additive for MgB2 and can be useful for optimizing the levitation performance of MgB2 superconductors for potential applications. © 2017 Elsevier B.V.en_US
dc.identifier.doi10.1016/j.jallcom.2017.08.242
dc.identifier.endpage1220
dc.identifier.issn0925-8388
dc.identifier.scopus2-s2.0-85028529992en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1213
dc.identifier.urihttps://dx.doi.org/10.1016/j.jallcom.2017.08.242
dc.identifier.urihttps://hdl.handle.net/20.500.12403/449
dc.identifier.volume727
dc.identifier.wosWOS:000412712900146en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Ltd
dc.relation.ispartofJournal of Alloys and Compoundsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCoronene adding
dc.subjectLevitation force
dc.subjectMgB2 superconductor
dc.subjectSuperconductivity
dc.subjectCoronene adding
dc.subjectLevitation force
dc.subjectMgB2 superconductor
dc.subjectSuperconductivity
dc.titleImprovement in levitation force performance of bulk MgB2 superconductors through coronene powder addingen_US
dc.typeArticleen_US

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