Fabrication and properties of some Ag-alloy sheathed Bi-2223 tapes

Authors :: Zeng, R.
Guo, Y.C.
Tanaka, Y.
Horvat, J.
Ionescu, M.
Beales, T.P.
Apperley, M.
Liu, H.K.
Dou, S.X.
Source :: IEEE Transactions on Applied Superconductivity. June, 1999, Vol. 9 Issue 2, p2710, 4 p.
Publication Year :: 1999
Abstract: The effect on Bi-2223 phase formation in other Ag alloy sheaths in PIT tapes was reported. In addition, electromagnetic, mechanical and physiochemical properties in Ag-alloy sheathed PIT tapes was studied. The results showed that in monofilamentary Ag-X alloy tapes, the reactivity of X towards oxygen influenced the formation of Bi-2223. Even small alloying additions caused a significant change in the phase kinetics of Bi-2223 and the microstructure of the oxide core. However, no significant effects in the phase formation of Bi-2223 were noted in the multifilamentary tapes.