A-15 Superconducting composite wires and a method for making

Patent · Sun Jan 01 00:00:00 EST 1984

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 (United States)
• 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

a-15
superconducting
composite
wires
method
fabricating
billet
copper
containing
filaments
niobium
vanadium
rolled
form
strip
wrapped
tin-alloy
core
alloy
tin-copper
gallium-copper
drawn
desired
wire
size
heat
treated
treatment
process
bronze
reacts
superconductor
gallium
eliminates
costly
annealing
steps
external
plating
drilling
ingots
required
prior
processes
superconducting composite
fabricating superconducting
heat treatment
heat treated
superconducting wire
annealing steps
copper alloy
treatment process
annealing step
composite wire
copper containing
conducting wires
conducting wire
containing filaments
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