A-15 Superconducting composite wires and a method for making

Patent · Sat Dec 31 23:00:00 EST 1983

OSTI ID:865286

Suenaga, Masaki ^[1]; Klamut, Carl J ^[2]; Luhman, Thomas S ^[3]

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1. Bellport, NY
2. East Patchogue, NY
3. Westhampton Beach, NY

A method for fabricating superconducting wires wherein a billet of copper containing filaments of niobium or vanadium is rolled to form a strip which is wrapped about a tin-alloy core to form a composite. The alloy is a tin-copper alloy for niobium filaments and a gallium-copper alloy for vanadium filaments. The composite is then drawn down to a desired wire size and heat treated. During the heat treatment process, the tin in the bronze reacts with the niobium to form the superconductor niobium tin. In the case where vanadium is used, the gallium in the gallium bronze reacts with the vanadium to form the superconductor vanadium gallium. This new process eliminates the costly annealing steps, external tin plating and drilling of bronze ingots required in a number of prior art processes.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4489219
• OSTI ID: 865286
• Country of Publication: United States
• Language: English

Related Subjects

/174/29/505/
a-15
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