Optimization of the Sn-Ta sheet composition in jelly roll processed [(Nb, Ta).sub.3]Sn wires

The study describes the optimization of the [(Nb, Ta).sub.3]Sn wires, which are fabricated using the Sn-Ta sheet by jelly roll processing. It is found that a small amount of Ti and Cu addition in the wires decreases the amount of Ta in the sheet considerably.