Hardness and microstructural analysis of Bi1.6Pb0.4Sr2Ca2−xSmxCu3Oy polycrystalline superconductors

Basit Öğe Kaydı
dc.contributor.authorKölemen, U.
dc.contributor.authorUzun, O.
dc.contributor.authorYilmazlar, M.
dc.contributor.authorGüçlü, N.
dc.contributor.authorYanmaz, E.
dc.date.accessioned2020-06-25T17:43:33Z
dc.date.available2020-06-25T17:43:33Z
dc.date.issued2006
dc.descriptionUZUN, ORHAN/0000-0001-7586-9075
dc.description.abstractBi1.6Pb0.4Sr2Ca2-xSmxCu3Oy superconductors with nominal substitution parameters x = 0.0, 0.001, 0.005, and 0.1 were prepared by the conventional solid-state reaction powder compacting method. The effects of Sm substitution on the phase formation, microhardness and surface microstructure of the samples were investigated. Phase examination by X-ray diffraction indicated that Sm substitution enhanced the formation of the Bi-2212 phase. Morphological investigations by scanning electron microscope revealed that both the number and size of the voids on the sample surfaces decreased with Sm enrichment. This result was also supported by density measurements of the samples. Additionally, indentation-induced Vickers microhardness testing results in the applied load range 0.245-2.940 N were presented. It was shown that microhardness values decreased non-linearly with increasing applied load in all cases. The experimental results were analyzed using the Kick's law, the Hays-Kendall approach and the modified proportional specimen resistance (PSR) model. The analyses revealed that Kick's law failed to explain the observed variations. Besides, the modified PSR model was more suitable than the Hays-Kendall approach to estimate load independent hardness of BSCCO superconductor. (c) 2005 Elsevier B.V. All rights reserved.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1016/j.jallcom.2005.09.023
dc.identifier.endpage306en_US
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-33646160206
dc.identifier.scopusqualityQ1
dc.identifier.startpage300en_US
dc.identifier.urihttps://doi.org10.1016/j.jallcom.2005.09.023
dc.identifier.urihttps://hdl.handle.net/20.500.12587/3788
dc.identifier.volume415en_US
dc.identifier.wosWOS:000237750200055
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal Of Alloys And Compounds
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBSCCO systemen_US
dc.subjectindentation size effecten_US
dc.subjectload independent hardnessen_US
dc.titleHardness and microstructural analysis of Bi1.6Pb0.4Sr2Ca2−xSmxCu3Oy polycrystalline superconductorsen_US
dc.typeArticle

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
[ X ]
İsim:
Hardness and microstructural analysis of Bi1.6Pb0.4Sr2Ca2-xSmxCu3Oy polycrystalline superconductors.pdf
Boyut:
464.53 KB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam Metin/Full Text
İndir

Koleksiyon

WOS İndeksli Yayınlar Koleksiyonu
Makale Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu