Effect of Ag doping on J_cvs. B properties of the Bi-Pb-Sr-Ca-Cu-O tape fabricated by an Ag sheath

Abstract

The powder-in-tube method using an Ag sheath is applied to achieve high current-capacity in the tapes of Bi-Pb-Sr-Ca-Cu-0 (BPSCCO) with the high-Tc phase, by a combination of cold working and sintering. Two kinds of the BPSCCO powders with and Magnetic Susceptibility and I-V characteristics at 77K obtained for above powders are presented and discussed: An improvement in Jc vs B properties of the BPSCCO tapes by Ag doping is presented.

Improved critical current of superconducting Bi2223 - Ag tapes for current lead application by addition of `large' silver particles

“…Due to these facts it is reasonable to suppose that silver added to the core would improve the critical current density of Bi2223-Ag tapes, because it would provide an additional 'interface'. The effect of silver additions in Bi2223 tapes has been investigated in several studies [2,[4][5][6][7][8]. The results were somewhat contradictory, but it was generally found that the addition does not significantly improve the properties of the tapes.…”

Magnetic Properties and Irreversibility Behavior in Ag-Sheathed Bi-Based Superconducting Wires Fabricated Using a Controlled Melt Procedure

“…Important contributions to progress in BSCCO:2223 PIT conductor processing have been made by researchers associated with companies and institutions such as: Mitsubishi Material Corporation (MBC) [1], Interdisciplinary Research Center in Superconductivity (IRC) [2,4], Northwest Institute for Nonferrous Metal Research (NIN) [3], Toyohashi University of Technology (TTI) [4], University of Geneva (UDG) [5], Showa Electric Wire and Cable (SEW) [6], Sumitomo Electric Industries (SEI) [7][8][9][10][11][12][13], Kyoto University Dept. of Metallurgy (KUM) [14][15][16] Ratios that were both Bi-rich and Carich were employed by qTl, SEI, and IGC --e.g.…”