Method of producing a superconducting wire using alloy preform

Patent · Mon Dec 04 23:00:00 EST 1989

OSTI ID:6911219

Sugimoto, M; Kohno, O; Ikeno, Y; Sadakata, N; Aoki, S; Nakagawa, M

This patent describes a method of producing a superconductor including an A-B-C-D system oxide superconductor wherein the A contains at least one element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, the B at least one element selected from the group consisting of Be, Sr, Mg, Ca, Ba, and Ra, the C copper and the D oxygen. It comprises: arranging a material containing one of the A and B inside or outside an elongated tubular layer to surround the tubular layer to form a preform. The tubular layer including an alloy of copper and the other of A and B, the material or the tubular layer including oxygen; subsequently, reducing in thickness the preform to form a thickness reduced composite; and heating the thickness reduced composite to produce the oxide superconductor.

• Assignee: Fujikura Ltd., Tokyo
• Patent Number(s): A; US 4885273
• OSTI ID: 6911219
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
426001 -- Engineering-- Superconducting Devices & Circuits-- (1990-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORIDES
BORON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
FABRICATION
HEATING
MATERIALS
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTING WIRES
SYNTHESIS
WIRES