New Developments in ${\rm Nb}_{3}{\rm Sn}$ PIT Strand: The Effects of Titanium and Second Phase Additions on the Superconducting Properties

We report the effect of titanium on the transport properties of multifilament PIT strand. In addition, the effect of second phase yttrium additions on the microstructure and the bulk pinning force are reported for PIT Nb
₃
Sn mono-core wires. High resolution SEM, EDS, magnetization, and transport measurements were utilized to evaluate the superconducting properties.