Investigation of indentation size effect (ISE) and micro-mechanical properties of Lu added Bi2Sr2CaCu2Oy ceramic superconductors

Basit Öğe Kaydı
dc.authorid0000-0002-0391-5551en_US
dc.authorid0000-0002-5177-3703en_US
dc.contributor.authorÖztürk, Özgür
dc.contributor.authorErdem, M.
dc.contributor.authorAşıkuzun, Elif
dc.contributor.authorYıldız, O.
dc.contributor.authorYıldırım, Gürcan
dc.contributor.authorVarilci, Ahmet
dc.contributor.authorTerzioğlu, Cabir
dc.date.accessioned2021-06-23T19:35:09Z
dc.date.available2021-06-23T19:35:09Z
dc.date.issued2013
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractIn this study, we investigated the effect of the Lutetium (Lu) addition on microstructure and mechanical properties of the Bi-2212 superconductors annealed at 840 degrees C for 50 h. The samples were prepared by the widely used conventional solid-state reaction method. For comparison, undoped sample was prepared in the same conditions. The prepared samples were characterized using X-ray powder diffraction (XRD), scanning electron microscope (SEM), and microhardness measurements (H-v). The volume fraction and lattice parameters were determined from the XRD measurements. The microstructure, surface morphology and orientation of the grains were investigated by SEM. In this study we have focused on microhardness measurements to investigate the mechanical properties. Vickers microhardness, load independent hardness, Young's modulus, fracture toughness and yield strength values were calculated separately for doped and undoped samples. Experimental results of hardness measurements were analyzed using the Meyer's law, proportional sample resistance (PSR) model, modified proportional sample resistance (MPRS) model, Elastic-Plastic deformation model (EPD), and Hays-Kendall (HK) approach. Finally, the Hays-Kendall (HK) approach was determined as the most successful model describing the mechanical properties of our samples. Moreover, lattice parameter c and volume fraction of Bi-2212 phase decreased with increasing Lu content. SEM measurements show that not only the surface morphology and grain connectivity were obtained to degrade but also the grain sizes of the samples were found to decrease with the increase of the Lu addition, as well.en_US
dc.identifier.doi10.1007/s10854-012-0722-9
dc.identifier.endpage238en_US
dc.identifier.issn0957-4522
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-84871975666en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage230en_US
dc.identifier.urihttps://doi.org/10.1007/s10854-012-0722-9
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7722
dc.identifier.volume24en_US
dc.identifier.wosWOS:000313799400033en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorErdem, M.
dc.institutionauthorYıldırım, Gürcan
dc.institutionauthorVarilci, Ahmet
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.titleInvestigation of indentation size effect (ISE) and micro-mechanical properties of Lu added Bi2Sr2CaCu2Oy ceramic superconductorsen_US
dc.typeArticleen_US

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim Yok
İsim:
ozgur-ozturk-7722.pdf
Boyut:
697.57 KB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam metin/Full text
İndir

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Fizik Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu