| Title |
Microstructure and Superconducting Properties of Ag-Bi_{1.84}Pb_{0.34}Sr_{1.91}Ca_{2.03}Cu_{3.06}O_{10+δ} Composites |
| Keywords |
Bi(Pb)-Sr-Ca-Cu-O ; High-Tc ; Microstructure ; EDS ; SEM |
| Abstract |
Samples with the nominal composition, Ag-Bi_{1.84}Pb_{0.34}Sr_{1.91}Ca_{2.03}Cu_{3.06}O_{10+δ} high T_{c} superconductors containing Ag as an additive were fabricated by a solid-state reaction method. Samples with Ag of 10 wt%, 30 wt%, and 50 wt% each were sintered at 860°C~870°C for 24 hours. The structural characteristics, the microstructures and the critical temperature with respect to the each samples were investigated by XRD, four-prove methode, SEM and EDS respectively. The T_{c} ^{zero} of the sample with the 50 wt% Ag additive at the surface showed 94 K. |