Process for producing NB.sub.3 SN superconducting wires
AssigneeNational Research Institute for Metals
InventorsKyoji Tachikawa, Yuji Yoshida
Life of this patent
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Abstract
A process for producing a Nb.sub.3 Sn superconducting wire, which comprises preparing a composite from a copper alloy material containing 0.1 to 5 atomic percent in total of at least one element of Group IV of the periodic table selected from titanium, zirconium and hafnium, a tin material and a niobium material, processing the composite into a wire, tape or tube, and heat-treating the processed composite at a temperature of 400.degree. to 900.degree. C. to form a Nb.sub.3 Sn compound.
Claims8
A process for producing a Nb.sub.3 Sn superconducting wire, which comprises preparing a composite from a tin material, a niobium material and a matrix of copper alloy material which is tin-free containing 0.1 to 5 atomic percent in total of at least one element of Group IV of the periodic table selected from the group consisting of titanium, zirconium, and hafnium;
- processing the composite into a wire, tape or tube;
- and heat-treating the processed composite at a temperature of 400.degree. to 900.degree. C. to form a Nb.sub.3 Sn compound.
A process for producing a Nb.sub.3 Sn superconducting wire, which comprises preparing a composite from a niobium material and a matrix of copper alloy material which is tin-free containing 0.1 to 5 atomic percent in total of at least one element of Group IV of the periodic table selected from the group consisting of titanium, zirconium and hafnium;
- processing the composite into a wire, tape or tube;
- coating the surface of the processed composite with tin, and thereafter heat-treating the coated composite at a temperature of 400.degree. to 900.degree. C. to form a Nb.sub.3 Sn compound.
Dependencies are inferred from the claim text.