A comprehensive study on mechanical properties of Bi1.8Pb0.4Sr2MnxCa2.2Cu3.0Oy superconductors

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dc.authorid0000-0002-4214-9159en_US
dc.authorid0000-0002-0391-5551en_US
dc.authorid0000-0002-5177-3703en_US
dc.contributor.authorDoğruer, Musa
dc.contributor.authorKaraboğa, Fırat
dc.contributor.authorYıldırım, Gürcan
dc.contributor.authorTerzioğlu, Cabir
dc.contributor.authorÖztürk, Özgür
dc.date.accessioned2021-06-23T19:34:24Z
dc.date.available2021-06-23T19:34:24Z
dc.date.issued2013
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractThis study manifests the crucial change in the mechanical performances of Bi1.8Pb0.4Sr2MnxCa2.2Cu3.0Oy superconductor samples (x = 0, 0.03, 0.06, 0.15, 0.3 and 0.6) prepared by conventional solid-state reaction method by use of Vickers microhardness (H-v) measurements carried out at different applied loads, (0.245 N a parts per thousand currency sign F a parts per thousand currency sign 2.940 N). Load dependent microhardness, load independent microhardness, Young's (elastic) modulus and yield strength values being account for the potential technological and industrial applications are evaluated from the hardness curves and compared with each other. It is found that the H-v, elastic modulus and yield strength obtained decrease (increase) with the enhancement of the applied load for the undoped (doped) samples. Surprisingly, the results of the H-v values illustrate that the samples doped with x = 0.03, 0.06, 0.15, 0.3 and 0.6 exhibit reverse indentation size effect (RISE) feature whereas the pure sample obeys indentation size effect (ISE) behavior. Furthermore, the experimental results are examined with the aid of the available methods such as Meyer's law, proportional sample resistance model (PSR), elastic/plastic deformation (EPD), Hays-Kendall (HK) approach and indentation-induced cracking (IIC) model. The results inferred show that the hardness values calculated by PSR and EPD models are far from the values of the plateau region, meaning that these models are not adequate approaches to determine the real microhardness value of the Mn doped Bi-2223 materials. On the other hand, the HK approach is completely successful for the explanation of the ISE nature for the pure sample while the IIC model is obtained to be the best model to describe the hardness values of the doped materials exhibiting the RISE behavior. Additionally, the bulk porosity analysis for the samples reveals that the porosity increases monotonously with the increment in the Mn inclusions inserted in the Bi-2223 system, presenting the degradation of the grain connectivity.en_US
dc.identifier.doi10.1007/s10854-013-1152-z
dc.identifier.endpage2666en_US
dc.identifier.issn0957-4522
dc.identifier.issue8en_US
dc.identifier.scopus2-s2.0-84881481543en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2659en_US
dc.identifier.urihttps://doi.org/10.1007/s10854-013-1152-z
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7498
dc.identifier.volume24en_US
dc.identifier.wosWOS:000321913900002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorDoğruer, Musa
dc.institutionauthorKaraboğa, Fırat
dc.institutionauthorYıldırım, Gürcan
dc.institutionauthorTerzioğlu, Cabir
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal Of Materials Science-Materials In Electronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleA comprehensive study on mechanical properties of Bi1.8Pb0.4Sr2MnxCa2.2Cu3.0Oy superconductorsen_US
dc.typeArticleen_US

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