Study on the physical and electrical properties of Bi2-?Zn?Sr2Ca2Cu3O10+y glass-ceramic superconductors
Küçük Resim Yok
Tarih
2002
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Kluwer Academic/Plenum Publ
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We have fabricated a series of glass-ceramic (Bi2-deltaZndelta) Sr2Ca2Cu3O10+y, where delta = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0, and investigated the effect of Zn ions on the glass formation, crystallization, thermal, electrical, and on the magnetic properties of the BSCCO-2223 superconductor system. The structural symmetry was found to be tetragonal in all the substitution levels. The best electrical performance was obtained from the 6 = 0 sample, the T-c and T-zero was obtained at 110 K and 107 K, respectively. The J(c) values of the samples were determined using the magnetization hysteresis and Bean's model. The crystallization kinetics were investigated using nonisothermal models of Augis-Bennett. The calculated activation energy, E-a, of the system was found to be in the range of 258-336 kJ/mol.
Açıklama
Anahtar Kelimeler
activation energy, superconductivity, HTc (Bi2-delta Zn delta)Sr2Ca2Cu3O10+y, Zn-substitution
Kaynak
Journal of Superconductivity
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
15
Sayı
6
