PRECURSOR FOR MANUFACTURE OF Nb3Sn SUPERCONDUCTING WIRE ROD, AND Nb3Sn SUPERCONDUCTING WIRE ROD

WIPO Patent Application WO/2007/099820

A1

This invention provides a precursor for the manufacture of an Nb3Sn superconducting wire rod. The precursor comprises a superconducting core part comprising a Cu-Sn-base alloy and a plurality of Nb-base filaments disposed in the Cu-Sn-base alloy, the Nb-base filament being formed of Nb or an Nb-base alloy, a diffusion barrier layer disposed on the outer periphery of the superconducting core part and formed of Nb, and a stabilization copper layer, wherein the distance from the inner peripheral face of the diffusion barrier layer to the Nb-base filaments present in the outermost layer part in the superconducting core part is set to not less than 2 μm in a final shape after area reduction.

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MIYAZAKI, Takayoshi (())
宮崎 隆好 (())

JP2007/053115

September 07, 2007

February 20, 2007

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KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohama-cho 2-chome Chuo-ku, Kobe-sh, Hyogo 85, 6518585, JP)
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, 6518585, JP)
JAPAN SUPERCONDUCTOR TECHNOLOGY, Inc. (5-5 Takatsukadai 1-chome, Nishi-ku Kobe-sh, Hyogo 71, 6512271, JP)
ジャパンスーパーコンダクタテクノロジー株式会社 (〒71 兵庫県神戸市西区高塚台１丁目５番５号 Hyogo, 6512271, JP)

H01B13/00; C22C27/02; H01B12/10; H01F6/06; C22C9/00; C22C9/02; C22C9/06; C22C13/00

OGURI, Shohei et al. (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 1050003, JP)

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