Degeneration of mechanical characteristics and performances with Zr nanoparticles inserted in Bi-2223 superconducting matrix and increment in dislocation movement and cracks propagation

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dc.authorid0000-0002-5177-3703en_US
dc.authorid0000-0001-8058-1690
dc.authorid0000-0002-7275-1132
dc.authorid0000-0001-6228-3630
dc.authorid0000-0002-1821-0722
dc.authorid0000-0003-0049-0161
dc.contributor.authorAkdemir, Ertuğrul
dc.contributor.authorPakdil, Murat
dc.contributor.authorBilge, Habibullah
dc.contributor.authorKahraman, Mehmet Fatih
dc.contributor.authorBekiroğlu, Erdal
dc.contributor.authorYıldırım, Gürcan
dc.contributor.authorÖz, Muhammed
dc.date.accessioned2021-06-23T19:43:47Z
dc.date.available2021-06-23T19:43:47Z
dc.date.issued2016
dc.departmentBAİBÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümüen_US
dc.departmentBAİBÜ, Mühendislik Fakültesi, Elektrik Elektronik Mühendisliği Bölümü
dc.departmentBAİBÜ, Gerede Meslek Yüksekokulu, Kimya Ve Kimyasal İşleme Teknolojileri Bölümü
dc.description.abstractThis study explains the role of Zr concentration level on mechanical characteristics and performance belonging to the bulk Bi-2223 superconducting materials by means of standard Vickers microhardness (H-v) measurements at different applied loads in the range of 0.245-2.940 N and evaluated theoretical calculations. The experimental measurement results obtained display that the mechanical performances regress with the increment of the Zr addition level due to the increased artificial disorders/damages/breaks/voids/cracks and irregular grain orientation distribution. In other words, the Zr addition accelerates both the dislocation movement and especially the cracks/voids propagation of as a consequence of the decrement in the Griffith critical crack length, being one of the most striking points deduced from this work. These vital findings are also favored by the extracted parameters of Young's modulus, yield strength, fracture toughness and brittleness index. Nevertheless, it is found that every sample studied exhibit typical indentation size effect (ISE) behavior due to the production of the elastic and plastic deformations simultaneously in the system. Moreover, the load dependent microhardness values are theoretically analyzed with the aid of six available models such as six available approaches: Meyer's law, proportional sample resistance model, modified proportional sample resistance model, elastic/plastic deformation, Hays-Kendall (HK) and indentation-induced cracking model for the first time. The results obtained show that the HK approach exhibits perfectly performance on the analysis of the mechanical characteristics of the superconducting materials exhibiting ISE behavior whereas the other models are inadequate to explain the load independent mechanical characteristics of the Bi-2223 system added by the Zr nanoparticles.en_US
dc.identifier.doi10.1007/s10854-015-4022-z
dc.identifier.endpage2287en_US
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-84957849837en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2276en_US
dc.identifier.urihttps://doi.org/10.1007/s10854-015-4022-z
dc.identifier.urihttps://hdl.handle.net/20.500.12491/8851
dc.identifier.volume27en_US
dc.identifier.wosWOS:000372170800016en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAkdemir, Ertuğrul
dc.institutionauthorPakdil, Murat
dc.institutionauthorBilge, Habibullah
dc.institutionauthorKahraman, Mehmet Fatih
dc.institutionauthorBekiroğlu, Erdal
dc.institutionauthorYıldırım, Gürcan
dc.institutionauthorÖz, Muhammed
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.subjectBi-2223 Superconducting Matrixen_US
dc.subjectZr Nanoparticle
dc.subjectDegeneration
dc.subjectHv
dc.titleDegeneration of mechanical characteristics and performances with Zr nanoparticles inserted in Bi-2223 superconducting matrix and increment in dislocation movement and cracks propagationen_US
dc.typeArticleen_US

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