Improvement of Superconducting Parameters of Bi1.8Pb0.4Sr2Ca2Cu3O10+§ Added with Nano-Ag
Abstract
Bi1.8Pb0.4Sr2Ca2Cu3O10+ superconductor samples were synthesized by the conventional solid-state reaction technique. Nano-Ag was introduced by small weight percentages (0.2, 0.4, 0.6, 1, and 1.5 weight %) in the final step of the synthesis process. Phase formation and microstructure were investigated using x-ray powder diffraction, differential scanning calorimetry, and scanning electron microscopy. The real elemental-content and oxygen-content were examined using Particle Induced X-ray Emission (PIXE) and Rutherford Backscattering (RBS) techniques, respectively. Electrical resistivity as function of the temperature was carried to evaluate the relative performance of samples. Moreover, Electric field-Current density (–) characteristic curves were measured at 77 K. The electrical and granular properties were greatly enhanced, indicating more efficient pinning mechanisms. An improvement of the critical current density of 229 % was obtained with 𝑥=0.6 wt.%, while the superconducting transition temperature is improved by 2.5 %.
Coauthor(s)
Roumie M., Marhaba S., Awad A., Hassan I., Mawassi R.
Journal/Conference Information
Journal of Superconductivity and Novel Magnetism,