Recent developments on processing and properties of V3Ga composite wires

The addition of small amounts of third elements to V-Ga alloy rods have resulted in improvements in ductility. Cerium, yttrium, and titanium additions have been studied. Cerium (0.2atomic%)and yttrium (0.2 atomic%) additions reduced the microhardness from 180 to 160 KG/mm². Lower mlcrohardnesses in alloy rods facilitates the metallurgical processing to small filament diameters used in multifilamentacy V3Ga wire. The effects of these alloy additions on V3Ga wire formed by the modified bronze technique are presented. Progress is reported on the development of high critical current density V3Ga wires using the V-Ga/Cu-Ga modified bronze process.