Study on the physical and electrical properties of Bi2-delta Zn delta Sr2Ca2Cu3O10+y glass-ceramic superconductors


Aksan M. A. , YAKINCI M., BALCI Y.

JOURNAL OF SUPERCONDUCTIVITY, cilt.15, ss.553-558, 2002 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 15 Konu: 6
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1023/a:1021290923537
  • Dergi Adı: JOURNAL OF SUPERCONDUCTIVITY
  • Sayfa Sayıları: ss.553-558

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.