New Ti-Sn Intermetallic Compound and $({\hbox {Nb}},{\hbox {Ti}})_{3}{\hbox {Sn}}$ Conductor

New Ti-Sn intermetallic compound of Ti₂Sn₃ could be easily synthesized at both of diffusion couple and powder mixture. It was found that Ti₂Sn₃ is very brittle and easily deformed to fine powders. This new high Sn-based compound could be used for an additional Ti and Sn source for the bronze processed (Nb,Ti)₃Sn wires. The hybrid bronze processed wires are demonstrated with additional Ti₂Sn₃ modules in the bronze matrix. Significantly thick (Nb,Ti)₃Sn layers were formed. Although Nb cores still remained in the center of filaments, (Nb,Ti)₃Sn layers had no apparent gradient of Sn and Ti concentrations. We found the formation of (Cu,Nb)SnTi phases along (Nb,Ti)₃Sn filaments. After heat treatment, no large Kirkendall voids were observed in the position filled up Ti₂Sn₃ powders. Fine tau1-CuSn₃Ti₅ precipitates are dispersed and they may behave as the reinforcement for the bronze matrix. It might resemble the effect of the ODS copper. The T _c of hybrid bronze processed wires made with additional Ti₂Sn₃ modules is comparable with that of the commercially bronze processed wires, which is about 17.5 K.