The Influence of MgO Addition on the Fabricating BPSCCO Superconducting Monofilament Wires using Ag-sheated and Stainless Steel 316 Tubes Prepared By PIT Method

The synthesis of MgO particles were substituted into Bi_1.6Pb_0.4Sr₂Ca_2-xO_xCu₃O_y superconducting monofilament wires using Silver and Stainless Steel 316 tubes by Powder-In-Tube method was done. Phase identification by X-Ray Diffraction (XRD), microsctructure analysis by SEM-EDS and the resistivity as a function of temperature measurement. The effects of addition 5% wt MgO in the sample of BPSCCO superconducting monofilament wires using Ag-sheated and Stainless Steel 316 on the critical temperature (Tc) of pure and MgO dopant were sheated by Ag tube with Ag-sheated with sintering time 9 h and 30 h with produced the T_c-onset 98 K; 78; K 72 K. The sample was sheated Stainless Steel 316 produced the T_c,onset = 92.9 K for BPSCCO without dopant, however the critical temperature for BPSCCO with the addition of MgO dopant did not show. The surface morphology, is analyzed by SEM-EDS and the results shows that the crack and the grains distributed randomly. The diffraction pattern of the sample with XRD and the addition of MgO dopant to BPSCCO superconducting monofilament with Ag and Stainless Steel 316 decreases the T_c,onset if compared sample without dopant.This is consistent with the decrease in fraction volume-2223 fraction and the increase in fraction volume-2212. (paper)