Patent ID: 8832926

Claim:
A method of manufacturing Nb 3 Sn superconductor wire, the method comprising the steps of: producing a high-tin intermetallic powder compound; preparing a catalyst powder compound; mixing the high-tin intermetallic powder compound with the catalyst powder compound to produce an intermetallic powder mixture; introducing the intermetallic powder mixture into a tube to form a mono-element, the tube including copper cladding and the tube comprising one of niobium or a niobium alloy; cold-drawing the mono-element to a first predetermined diameter; assembling a plurality of mono-elements into a multi-element billet; hot-extruding the assembled multi-element billet to produce at least one multifilament billet containing Nb 3 Sn; and forming a wire having a second predetermined diameter by cold-drawing the at least one multifilament billet through a plurality of dies; wherein the high-tin intermetallic compound comprises MnSn 2 .