RARE EARTH-CONTAINING TAPE-SHAPED OXIDE SUPERCONDUCTOR

Title:

RARE EARTH-CONTAINING TAPE-SHAPED OXIDE SUPERCONDUCTOR

Document Type and Number:

WIPO Patent Application WO/2007/080876

Kind Code:

A1

Abstract:

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).

Inventors:

HASEGAWA TAKAYO (JP)
TAKAHASHI YASUO (JP)

Application Number:

PCT/JP2007/050139

Publication Date:

July 19, 2007

Filing Date:

January 10, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

INT SUPERCONDUCTIVITY TECH (JP)
SWCC SHOWA CABLE SYS CO LTD (JP)
HASEGAWA TAKAYO (JP)
TAKAHASHI YASUO (JP)

International Classes:

H01B12/06; H01B13/00

Domestic Patent References:

WO2004100182A1

2004-11-18

Foreign References:

JP2005056741A	2005-03-03
JP2005276465A	2005-10-06

Other References: