RE-123 SUPERCONDUCTING WIRE AND METHOD FOR MANUFACTURING SAME

Title:

RE-123 SUPERCONDUCTING WIRE AND METHOD FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO/2013/002372

Kind Code:

A1

Abstract:

This RE-123 superconducting wire comprises a base material, an intermediate layer formed over the base material, and an oxide superconducting layer formed over the intermediate layer and including an oxide superconductor represented by the composition formula RE1Ba2Cu3O7-δ (RE represents at least one rare-earth element); the oxide superconducting layer having a compound including 0.5 to 10 mol% of Hf dispersed as an artificial pin in the oxide superconducting layer, and the thickness d of the oxide superconducting layer being greater than 1 µm and satisfying the electric current characteristic Jcd/Jc1 ≥ 0.9 (Jc1 represents the critical current density when the thickness of the oxide superconducting layer is 1 µm, and Jcd represents the critical current density when the thickness of the oxide superconducting layer is d µm.

Inventors:

TOBITA HIROSHI (JP)
YOSHIZUMI MASATERU (JP)
IZUMI TERUO (JP)
SHIOHARA YUH (JP)

Application Number:

PCT/JP2012/066701

Publication Date:

January 03, 2013

Filing Date:

June 29, 2012

Export Citation:

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Assignee:

INT SUPERCONDUCTIVITY TECH (JP)
FUJIKURA LTD (JP)
TOBITA HIROSHI (JP)
YOSHIZUMI MASATERU (JP)
IZUMI TERUO (JP)
SHIOHARA YUH (JP)

International Classes:

H01B12/06; C01G1/00; C01G3/00; C01G27/00; H01B13/00

Domestic Patent References:

WO2009044637A1	2009-04-09
WO2009044637A1	2009-04-09

Foreign References:

JP2010086796A	2010-04-15
JP2005054210A	2005-03-03
JP2008130291A	2008-06-05
JP2006062896A	2006-03-09
JPH0532452A	1993-02-09
US7737087B2	2010-06-15

Other References: