img
The effect of cooling rates on properties of Bi1 7Pb0 35Sr1 9Ca2 1Cu3Oy superconductors produced by solid state reaction method       
Yazarlar
Prof. Dr. Özgür ÖZTÜRK Prof. Dr. Özgür ÖZTÜRK
Abant İzzet Baysal Üniversitesi, Türkiye
D Yeğen
Mustafa Yılmazlar
Sakarya Üniversitesi, Türkiye
Ahmet Varilci
Abant İzzet Baysal Üniversitesi, Türkiye
Cabir Terzioğlu
Abant İzzet Baysal Üniversitesi, Türkiye
Özet
We have investigated the effect of the cooling rates in the Bi-2223 superconducting samples prepared by standard solid-state reaction method using electrical resistivity, transport critical current density, and XRD (X-ray diffraction) measurements. We estimated the transition temperature values from the DC resistivity measurements. We observed that transition temperature, Tc, and transport critical current density, Jctrans, depend on the cooling rates of the samples. They both increase with increasing cooling rates. We estimated the peak temperature, Tp, from our previous ac susceptibility measurements. The pinning force density increased with increasing the cooling rate. XRD patterns are used to calculate lattice parameter c and obtain information about Bi-2223 phase ratio. © 2006 Elsevier B.V. All rights reserved.
Anahtar Kelimeler
Bean model | Intergranular critical temperature | Peak temperature | Pinning force | Transition temperature
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Dergi ISSN 0921-4534
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 01-2007
Cilt No 451
Sayı 2
Sayfalar 113 / 117
Doi Numarası 10.1016/j.physc.2006.11.003
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0921453406008148