Comparison of hydrostatic extrusion versus wire drawing as a method of producing Nb/sub 3/Sn superconducting wire
The conventional manufacturing process for Nb/sub 3/Sn multifilamentary superconducting wire is a combination of hot extrusion and wire drawing. An alternative process, cold hydrostatic extrusion, was developed in our laboratories. All experimental data pertaining to the hydrostatic extrusion process are presented, and a comparison is made between the two manufacturing methods. The results show that monofilamentary Nb/sub 3/Sn wire produced by hydrostatic extrusion not only has good superconducting properties, but also that larger reductions are achieved per pass, and fewer and shorter intermediate anneals are required in its manufacture.