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Change of Formation Velocity of Bi 2212 Superconducting Phase with Annealing Ambient   
Yazarlar
Prof. Dr. Özgür ÖZTÜRK
Kastamonu Üniversitesi, Türkiye
Yildirim Gurcan
Doç. Dr. Elif AŞIKUZUN TOKEŞER
Kastamonu Üniversitesi, Türkiye
Coskunyurek Murat
Mustafa Yılmazlar
Sakarya Üniversitesi, Türkiye
Ahmet Kılıç
Ankara Üniversitesi, Türkiye
Özet
This exhaustive study enables the researchers to recognize the role of the annealing conditions (temperature and time) on the microstructural, mechanical, electrical and superconducting properties of the Bi-2212 superconducting material with the aid of ρ-T, X-ray diffraction, scanning electron microscopy and Vickers microhardness (Hv) measurements. For this aim, the superconducting samples are elaborated by standard solid-state reaction route at different annealing temperature and different annealing duration. The results show that the annealing temperature of 840 C and the annealing duration of 72 h are the best for the formation velocity of Bi-2212 superconducting phase. In this study we have focused on microhardness measurements to investigate the mechanical properties. Vickers microhardness, Young's modulus, fracture toughness and yield strength values are calculated separately for all samples. Experimental results of hardness measurements are analyzed using the some models. Finally, the Hays-Kendall model is determined as the most successful model describing the mechanical properties of our samples. © 2013 Springer Science+Business Media New York.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of Material Sci: In Electronics
Dergi ISSN 0957-4522
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 11-2013
Cilt No 24
Sayı 11
Sayfalar 4643 / 4654
Doi Numarası 10.1007/s10854-013-1456-z
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
SCOPUS 10
Change of Formation Velocity of Bi 2212 Superconducting Phase with Annealing Ambient

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