The effect of Fe diffusion on some physical and superconducting properties of MgB2

dc.authorid0000-0003-3183-7017en_US
dc.authorid0000-0002-7112-5607en_US
dc.contributor.authorÜlgen, Asaf Tolga
dc.contributor.authorBelenli, İbrahim
dc.date.accessioned2021-06-23T19:48:56Z
dc.date.available2021-06-23T19:48:56Z
dc.date.issued2017
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractThe iron (Fe) diffusion in superconducting MgB2 bulk samples has been studied over the temperature range of 650-900 degrees C for 1 h. Fe coating on bulk polycrstalline superconducting MgB2 samples was performed in two ways, i.e., on pressed pellets without sintering (set(2)) and on pressed and sintered pellets (set(1)). For both sets, a 50 mu m thick Fe layer was coated on MgB2 by evaporation in vacuum. Effects of Fe diffusion on the crystal structure and superconducting properties of MgB2 have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and resistivity measurements. Fe diffusion coefficients were determined from lattice parameter c and room temperature resistivity values. The temperature dependence of the Fe diffusion coefficient in this temperature range is described by the Arrhenius relation. It has been found that the Fe diffusion coefficient increases with increasing sintering temperature, as expected. The plausible explanations for the observed improvement in microstructure and superconducting properties of the samples due to Fe diffusion are discussed.en_US
dc.identifier.doi10.1007/s10948-016-3780-z
dc.identifier.endpage1095en_US
dc.identifier.issn1557-1939
dc.identifier.issn1557-1947
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-84986264885en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage1089en_US
dc.identifier.urihttps://doi.org/10.1007/s10948-016-3780-z
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9271
dc.identifier.volume30en_US
dc.identifier.wosWOS:000396828100033en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÜlgen, Asaf Tolga
dc.institutionauthorBelenli, İbrahim
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal Of Superconductivity And Novel Magnetismen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMgB2en_US
dc.subjectFe Diffusionen_US
dc.subjectDiffusion Coefficient and Activation Energyen_US
dc.titleThe effect of Fe diffusion on some physical and superconducting properties of MgB2en_US
dc.typeArticleen_US

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