An investigation on the activation energy and the enthalpy of the primary crystallization of glass-ceramic Bi-rich BSCCOHTc superconductors

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dc.authorwosidbalci, yakup/AAA-4174-2021
dc.contributor.authorBalci, Y
dc.contributor.authorCeylan, M
dc.contributor.authorYakinci, ME
dc.date.accessioned2024-08-04T20:12:18Z
dc.date.available2024-08-04T20:12:18Z
dc.date.issued2001
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe transformation of amorphous Bi-rich BSCCO (Bi3Sr2Ca2Cu3O12-x) to a superconductive crystalline material has been characterized by structural, thermal and transport measurements. The activation energy and enthalpy data of amorphous materials are examined in terms of analysis developed for non-isothermal crystallization studies. Two groups of samples were prepared. The first group was glass pieces (8 x 8 x 2 mm(3)) of material, and the second group was the same glass material grained and powdered (similar to 1-50 Vm). Four different heating rates were used for differential scanning calorimetry and differential thermal analysis. The both thermal analysis indicated exothermic crystallization peaks at 467-489 degreesC for powdered and 472-490 degreesC for bulk samples depending on the heating rates. The enthalpy of the first crystallization of the samples varied between 40-107 and 30-35 J g(-1) powdered and bulk materials, respectively. The crystallization activation energies of the samples were found to be 299 and 349 kJ mol(-1) for powdered and bulk samples, respectively. The best electrical performance was obtained at 100 K for T-c and 90 K for T-zero. The highest thermal conductivity result was found to be 3.36 mW cm(-1) K-1. The active phonon modes of the system was also found using the Fourier transform infrared analysis. The surface and the polished cross-sections of the samples and evolution of the phases formed were examined by scanning electron microscopy. (C) 2001 Elsevier Science B.V. All rights reserved.en_US
dc.identifier.doi10.1016/S0921-5107(01)00656-0
dc.identifier.endpage91en_US
dc.identifier.issn0921-5107
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-0035807088en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage83en_US
dc.identifier.urihttps://doi.org/10.1016/S0921-5107(01)00656-0
dc.identifier.urihttps://hdl.handle.net/11616/93352
dc.identifier.volume86en_US
dc.identifier.wosWOS:000170264400016en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofMaterials Science and Engineering B-Solid State Materials For Advanced Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectglass-ceramicsen_US
dc.subjectBSCCO superconductorsen_US
dc.subjectcrystallization activation energyen_US
dc.titleAn investigation on the activation energy and the enthalpy of the primary crystallization of glass-ceramic Bi-rich BSCCOHTc superconductorsen_US
dc.typeArticleen_US

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