Superconductive wire

US5434128A · kind A · utility

Assignee

• United States Department of Energy · US

Inventors

• David A. Korzekwa · Los Alamos, US
• John F. Bingert · Jemez Springs, US
• Dean E. Peterson · Los Alamos, US
• Haskell Sheinberg · Los Alamos, US

Key dates

• Filing date: Dec 17, 1993
• Grant date: Jul 18, 1995
• Expiry date: Dec 17, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49014

Abstract

A superconductive article is made by inserting a rigid mandrel into an internal cavity of a first metallic tube, said tube having an interior surface and an exterior surface, said interior surface defining the interior cavity, forming a layer of a superconductive material or superconductive precursor upon the exterior surface of said first metallic tube, machining the layer of superconductive material or superconductive precursor to a predetermined diameter to form an intermediate article configured for insertion into a second metallic tube having an interior diameter corresponding to the predetermined diameter, inserting the machined intermediate article into a second metallic tube having an internal diameter corresponding to the predetermined diameter of the intermediate article to form a composite intermediate article, reducing or ironing the composite intermediate article to a predetermined cross-sectional diameter, and sintering the reduced or ironed composite intermediate article at temperatures and for time sufficient for the superconductive material or superconductive precursor to exhibit superconductivity.