Effect of Nb addition on the critical parameters of BSCCO superconductor

Sozeri H., Ghazanfari N., Oezkan H., KILIÇ A., HASANLI N.

1st Sharjah International Conference on Nanotechnology and Its Applications, Sharjah, United Arab Emirates, 10 - 12 April 2007, vol.929, pp.138-139 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 929
  • Doi Number: 10.1063/1.2776703
  • City: Sharjah
  • Country: United Arab Emirates
  • Page Numbers: pp.138-139
  • Middle East Technical University Affiliated: Yes

Abstract

Pure and Nb2O5 added Bi1.6Pb0.4NbxSr2Ca2Cu3O delta superconductors (0 <= x <= 0.30) were synthesized by the ammonium nitrate melt route. Fraction of the high T-c 2223 phase increases with addition of small amounts of Nb. AC susceptibility and transport measurements showed the optimum Nb concentration as x = 0.10. Nb additions above x = 0.20 decrease significantly the fraction of the high-T-c phase and degrade the superconducting properties.