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The Effect of PbSe Addition on the Mechanical Properties of Bi 2212 Superconductors      
Yazarlar
Şükrü Çavdar
Gazi Üniversitesi, Türkiye
E Deniz
Haluk Koralay
Gazi Üniversitesi, Türkiye
Prof. Dr. Özgür ÖZTÜRK Prof. Dr. Özgür ÖZTÜRK
Kastamonu Üniversitesi, Türkiye
Murat Erdem
Abant İzzet Baysal Üniversitesi, Türkiye
Abdullah Günen
Gazi Üniversitesi, Türkiye
Özet
The effects of PbSe addition and heat treatment on the structure and mechanical properties of Bi-2212 superconductors are analyzed. Glass ceramic method is used to produce PbSe added samples. The mechanical properties are derived using Vickers microhardness measurement results. Well known analysis methods like Meyer's law, PSR (Proportional Sample Resistance) Model, EDP (Elastic/ Plastic DeformationModel), Hays-Kendall approach and IIC (Indentation-Induced Cracking Model) are used to calculate load independent microhardness values of the samples. HK approach produces successful results for the samples A, E, F, G and H indicating ISE (Indentation Size Effect) behavior. The IIC model successfully explains RISE (Reverse Indentation Size Effect) behavior for the samples B, C and D. RISE behavior is observed only for the samples where the plastic deformation is dominant. ISE behavior is observed for the samples where both elastic and plastic deformation are produced. The results of XRD and SEM analysis show improvement with PbSe addition in the crystal structures and surface morphologies of superconducting samples. © Springer Science+Business Media, LLC 2012.
Anahtar Kelimeler
Bi-2212 | ISE | Rise | SEM | Vickers microhardness | XRD
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Dergi ISSN 1557-1939
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 10-2012
Cilt No 25
Sayı 7
Sayfalar 2297 / 2307
Doi Numarası 10.1007/s10948-012-1629-7
Makale Linki http://link.springer.com/10.1007/s10948-012-1629-7