RARE EARTH-CONTAINING TAPE-SHAPED OXIDE SUPERCONDUCTOR

WIPO Patent Application WO/2007/080876

A1

On a first intermediate layer provided on a substrate and having an excellent surface smoothness, are formed a second intermediate layer and an YBCO superconductor layer having excellent properties. An YBCO superconductor (10) having a critical current density (Jc) of 1 MA/cm2 or higher can be produced by forming a first intermediate layer (2), a second intermediate layer (3), an YBCO superconductor layer (4) and an Ag-stabilized layer (5) on the surface of a tape-shaped biaxially oriented Ni-W alloy substrate (1), wherein the first intermediate layer (2) has a thickness of 5 nm or less, has a surface smoothness, comprises A2Zr2O7, and is formed by repeating coating and provisional burning several times by the MOD method, the second intermediate layer (3) comprises a CeO2 film and is formed by the pulse plating method, the YBCO superconductor layer (4) is formed by the MOD method, and the Ag-stabilized layer (5) is formed on the YBCO superconductor layer (4).

HASEGAWA, Takayo (1-1-18, Toranomo, Minato-ku Tokyo 01, 1050001, JP)
長谷川 隆代 (〒01 東京都港区虎ノ門１丁目１番１８号 昭和電線ケーブルシステム株式会社内 Tokyo, 1050001, JP)

JP2007/050139

July 19, 2007

January 10, 2007

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International Superconductivity Technology Center, The Juridical Foundation (Eishin Kaihatsu Bldg. 6F, 5-34-3 Shinbash, Minato-ku Tokyo 04, 1050004, JP)
財団法人国際超電導産業技術研究センター (〒04 東京都港区新橋５丁目３４番３号 栄進開発ビル６階 Tokyo, 1050004, JP)
SWCC Showa Cable Systems Co., Ltd. (1-1-18, Toranomon Minato-ku Tokyo, 01, 1050001, JP)
昭和電線ケーブルシステム株式会社 (〒01 東京都港区虎ノ門１丁目１番１８号 Tokyo, 1050001, JP)

H01B12/06; H01B13/00; H01B12/06; H01B13/00

MORIYA, Kazuo (Lots Wako Bldg, 1-13 Nihonbashi-Honcho 3-chome, Chuo-k, Tokyo 23, 1030023, JP)

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