Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Process of making wire – tape – cable – coil – or fiber
Patent
1995-11-07
1999-03-23
Gorski, Joseph M.
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Process of making wire, tape, cable, coil, or fiber
29599, 505433, 505928, H01L 3924
Patent
active
058859381
ABSTRACT:
A low-aspect ratio multi-filament superconductor wire includes a plurality of oxide superconductor filaments arranged in an elongated wire structure. Each filament of the wire also has a low-aspect ratio. The filaments are textured such that a crystallographic c direction of each filament is aligned with a crystallographic c direction of all other filaments with the crystallographic c directions being perpendicular to the longitudinal axis of the wire structure. The invention also features a groove rolling machine for forming a low-aspect ratio multi-filament superconductor wire by texturing a precursor tape by deforming the tape to a low-aspect ratio wire by reducing a larger dimension of the tape in such a way as to prevent buckling of the tape. A superconducting cable can be formed by planetary winding a plurality of multi-filament superconductor wires.
REFERENCES:
patent: 5068219 (1991-11-01), Hagino et al.
EP 96 30 7753, European Search Report dated Feb. 28, 1997.
Otto et al., "Progress Towards a Long Length Metallic Precursor Process for Multifilament Bi-2223 Composite Superconductors", IEEE Transactions of Applied Superconductivity, vol. 5, No. 2, Jun. 1995, pp. 1154-1157.
Otto et al., "Properties of High-T.sub.c Wires Made by the Metallic Precursor Process", JOM, vol. 45, No. 9, Sep. 1993, pp. 48-52.
Christopherson Craig J.
Otto Alexander
American Superconductor Corporation
Gorski Joseph M.
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