Effect of ZrO2 Addition on Microstructure, Transport and Magnetic Properties of Bi2Sr2CaCu2O8+δ System

Superconducting properties and non-isothermal crystallization kinetics of a Bi2Sr2CaCu2O8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

“…Consequently, the Bi2212 superconductor has been extensively studied due to its relatively easy preparation and stable crystal structure. [6][7][8][9] The Bi2212 superconductor, a typical multi-component compound, is a potential material for manufacturing magnetic shields, current leads and other superconducting devices. 10 Recently, many studies have been focused on the improvement of phase purity and transport performance of the Bi2212 superconductor.…”

Excess conductivity analysis of BiPb-2223 superconductor added with (Al2O3–15wt% ZrO2) nanopowders

“…When the impurities' size is larger than the coherence length and smaller than the penetration depth, they lead to intensive interactions between vortex lines and nanoscale impurities and consequently enhanced the flux pining capability [11,37,55]. The effects of the various nanoscale impurities on the flux pinning and critical parameters of the Bi1.6Pb0.4Sr2Ca2Cu3O10+δ (BiPb-2223) have been investigated recently [25,35,49,[56][57][58][59][60][61][62][63][64][65]. In the present study, the effects of Al2O3-15 wt% ZrO2 (AlZr) nanocomposite on the microscopic parameters (coherence length, penetration depth, Fermi energy, and Fermi velocity of charge carriers) and superconducting parameters (critical current density and critical magnetic fields) of the BiPb-2223 superconductor phase has been investigated using excess conductivity analyses.…”