Method of making superconductor wires by hot isostatic pressing

Details Method of making superconductor wires by hot isostatic pressing Method of making superconductor wires by hot isostatic pressing

1989-01-19

1991-04-02

Gorski, Joseph M.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

29599, 264104, 264570, 505705, H01L 3924

Patent

active

050047221

ABSTRACT:
Powder or lengths of ceramic or metallic superconductor ceramic compositions are loaded into lengths of metal tubing. Mechanical reduction of filled tubing is facilitated by use of elevated temperatures and intermittent heat treatments as required. Rolling to a flattened cross section aids bending to the final device configurations and subsequent hot-isostatic-pressing. Hot-isostatic-pressing steps (1) close defects, including voids, cracks and joints and improve microstructure, and (2) join tested wire lengths to produce a superconductor length in the final configuration. Encapsulation of the superconductor is completed and assured with metal sleeves and solder or glass.

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"Fabrication of 91K Superconducting Coils", Jin et al., AT and T Bell Laboratories.

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