PRECURSOR FOR MANUFACTURING NB3SN SUPERCONDUCTING WIRE MATERIAL AND NB3SN SUPERCONDUCTING WIRE MATERIAL

Title:

PRECURSOR FOR MANUFACTURING NB3SN SUPERCONDUCTING WIRE MATERIAL AND NB3SN SUPERCONDUCTING WIRE MATERIAL

Document Type and Number:

WIPO Patent Application WO/2013/031830

Kind Code:

A1

Abstract:

The strength of a superconducting wire material is increased to over that of conventional superconducting wire materials. A precursor (1) (precursor for manufacturing an Nb3Sn superconducting wire material) is provided with: a superconducting matrix section (2) in which a plurality of Nb-based filaments (5) containing pure Nb or an Nb-based alloy are arranged in a bronze matrix section (4) (Cu-Sn-based alloy); a diffusion barrier layer (6) arranged on the outer periphery of the superconducting matrix section (2); a stabilization copper layer (7) arranged on the outer periphery of the diffusion barrier layer (6); and a reinforcing member (8), which is arranged in the superconducting matrix section (2) and which contains pure Ta or a Ta-based alloy. The reinforcing member (8) occupies an area ratio of 15-25% of the cross-section perpendicular to the axis of the precursor (1).

More Like This:

JP2599269

[Title of Invention] Superconducting wire

Inventors:

MURAKAMI YUKINOBU (JP)
KURAHASHI HIDEFUMI (JP)
KATO HIROYUKI (JP)

Application Number:

PCT/JP2012/071838

Publication Date:

March 07, 2013

Filing Date:

August 29, 2012

Export Citation:

Click for automatic bibliography generation Help

Assignee:

JAPAN SUPERCONDUCTOR TECHNOLOGY INC (JP)
MURAKAMI YUKINOBU (JP)
KURAHASHI HIDEFUMI (JP)
KATO HIROYUKI (JP)

International Classes:

H01B12/10; C22C9/02; C22C27/02; H01B13/00; H01F6/06; C22F1/00; C22F1/08

Foreign References:

JP2001357734A	2001-12-26
JP2008300337A	2008-12-11
JP2009059652A	2009-03-19
JPH0982149A	1997-03-28
JPH10255563A	1998-09-25

Other References: