Integrated tape
AssigneeMetal Manufacturers Limited
InventorFrancis Anthony Darmann
Life of this patent
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Abstract
Production of a superconducting tape of the powder-in-tube type comprising multiple filaments (1) of superconducting material embedded in a silver matrix (2) having the properties of a filament thickness of less than about 40 μm and an overall tape thickness in the range from about 0.45 mm to 1.20 mm. A superconducting power cable including a tubular copper former (3) defining a cooling duct (4) about which superconducting tape is helically laid in two layers of either the same or opposite hand. The cable further includes thermal insulation (5), an electrical screen (6), electrical insulation (7), a further electrical screen (8) and containment (9).
Claims18
A superconducting tape of the powder-in-tube type comprising multiple filaments of super conducting material embedded in a silver or silver alloy based matrix and characterised by the combination of a filament thickness of less than about 40 micrometers and an overall tape thickness in the range from about 0.45 mm to 1.20 mm.
A tape according to any one of the preceding claims in which the number of filaments in the tape is over 75.
A tape according to any one of the preceding claims in which the superconducting material is BSCCO-2223.
A tape according to any one of the preceding claims having a thickness from about 0.55 mm to 1.00 mm the tape having a width of between 1.8 mm to 6 mm.
A tape according to any one of the preceding claims in which the filaments are transposed so as to occupy progressively different cross-sectional positions as they progress along the length of the tape.
A superconducting tape substantially as herein described with reference to the invention as illustrated in FIG. 1.
A superconducting cable substantially as herein described with reference to the invention as illustrated in FIG. 2.
Dependencies are inferred from the claim text.