Method for producing Nb.sub.3 Sn superconductor
AssigneeNational Research Institute for Metals
InventorsKyoji Tachikawa, Hisashi Sekine
Life of this patent
Estimating the term…
Abstract
In a method for producing Nb.sub.3 Sn superconductors which comprises forming a composite consisting of a core portion and a sheath portion surrounding said core portion, said sheath portion being composed of a Cu-Sn alloy, and said core portion being composed of a Nb metal; elongating said composite; and heat-treating the resulting elongated composite to form an Nb.sub.3 Sn layer between said sheath and core portions; the improvement wherein the Cu-Sn alloy contains 1 to 20 atomic percent of Sn and the Nb metal is an Nb alloy containing 0.1 to 30 atomic percent of Hf.
Claims5
In a method for producing Nb.sub.3 Sn superconductors which comprises forming a composite consisting of a core portion and a sheath portion surrounding said core portion, said sheath portion being composed of a Cu-Sn alloy, and said core portion being composed of a Nb metal;
- elongating said composite;
- and heat-treating the resulting elongated composite to form an Nb.sub.3 Sn layer between said sheath and core portions;
- the improvement wherein the Cu-Sn alloy contains 1 to 20 atomic percent of Sn and the Nb metal is an Nb alloy containing 0.1 to 30 atomic percent of Hf.
Dependencies are inferred from the claim text.