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AssigneeFurukawa Electric Co., Ltd.
InventorsHiroyuki Kikuchi, Masanao Mimura, Naoki Uno, Yasuzo Tanaka
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A multifilamentary oxide superconducting wire includes a metal matrix and a plurality of flat oxide superconductor filaments arranged in the metal matrix such that wide directions thereof are radially arranged in a section of the metal matrix. A method of manufacturing a multifilamentary oxide superconducting wire includes the steps of filling a raw material of an oxide superconductor in a through hole of a metal member to form a composite billet, subjecting the composite billet to a diameter reduction process to form a composite wire having a fan-like section, arranging composite wires so that larger arcs of the composite wires are located on the outer side, thus forming form a composite wire arrangement, covering the composite wire arrangement with a metal member to form a metal-covered composite wire arrangement, and performing a predetermined heating process of the metal-covered composite wire arrangement, thus forming the raw material into an oxide superconductor.
A multifilamentary oxide superconducting wire, comprising a metal matrix and a plurality of oxide superconductor filaments each having an oblong cross section and arranged in said metal matrix such that a longer side of said oblong cross section extends in a radial direction of the oxide superconducting wire, wherein said oxide superconductor filaments have a flatness (L.sup.2 /S) of not less than 18, where L (mm) is a peripheral length in cross section of the oxide superconductor filaments, and S (mm.sup.2) is a cross sectional area of the oxide superconductor filaments.
Dependencies are inferred from the claim text.