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dc.contributor.authorKocabaş, Kemal
dc.contributor.authorGökçe, Melis
dc.contributor.authorÇiftçioğlu, Muhsin
dc.contributor.authorBilgili, Özlem
dc.date.accessioned2017-01-12T07:48:02Z
dc.date.available2017-01-12T07:48:02Z
dc.date.issued2010-04
dc.identifier.citationKocabaş, K., Gökçe, M., Çiftçioğlu, M., and Bilgili, Ö. (2010). Effect of compaction pressure on structural and superconducting properties of Bi-2223 superconductors. Journal of Superconductivity and Novel Magnetism, 23(3), 397-410. doi:10.1007/s10948-009-0590-6en_US
dc.identifier.issn1557-1939
dc.identifier.urihttp://doi.org/10.1007/s10948-009-0590-6
dc.identifier.urihttp://hdl.handle.net/11147/2758
dc.description.abstractIn this work, effects of compaction pressure on the structural and superconducting properties of BSCCO ceramic superconductors were investigated. The study was carried out on two systems which were, System I: Bi 1.7Pb 0.3Sr 2Ca 2Cu 3O y and System II: Bi 1.6Pb 0.3Ag 0.1Sr 2Ca 2Cu 3O y, respectively. Ceramic powders were prepared by conventional solid-state reaction method and sintered at 850°C after compaction at five different pressures in the 150-750 MPa range. Critical temperatures of samples were determined by resistivity-temperature determinations made by four-point probe method in liquid nitrogen conditions. XRD analysis was conducted by powder X-ray diffraction method. Morphology of the grains present in the samples were determined by using scanning electron microscope (SEM) photographs at 2 K× and 2.5 K× magnifications for System I and System II, respectively. Sintered densities of the superconducting ceramics were measured by Archimedes water displacement method and unit cell parameters were additionally obtained from XRD data. T c values for System I was determined to be in the 109-115 K with sample D having the highest T c of 115 K while T c varied in the 104-109 K range and sample B had the highest T c value of 109 K for System II. The transition width, which is a sign of the purity of the samples, was determined to be narrow for both systems. The data obtained from X-ray diffraction measurements have shown that 2223 high-T c phase was dominant in both systems. The determination of the optimum pellet compaction pressure for BSCCO ceramic superconductors was the main purpose of this work. The results of this work indicated that compaction at around 450 MPa improves the superconducting and structural properties of the BSCCO ceramic superconductors. © 2009 Springer Science+Business Media, LLC.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relation.isversionof10.1007/s10948-009-0590-6en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectX-ray diffractionen_US
dc.subjectGrain structureen_US
dc.subjectBi-based superconductorsen_US
dc.subjectCompaction pressureen_US
dc.titleEffect of compaction pressure on structural and superconducting properties of Bi-2223 superconductorsen_US
dc.typearticleen_US
dc.contributor.authorIDTR11652en_US
dc.contributor.iztechauthorÇiftçioğlu, Muhsin
dc.relation.journalJournal of Superconductivity and Novel Magnetismen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume23en_US
dc.identifier.issue3en_US
dc.identifier.startpage397en_US
dc.identifier.endpage410en_US


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