NB3SN-Supraleitungsdrahtvorläufer und NB3SN-Supraleitungsdraht

Details

Veröffentlichungs-Nr.

EP4734130

Anmeldetag

14. Juni 2024

Veröffentlichung

26. Dezember 2024

Rechtsraum

EP

IPC

H01B13/00, H01B12/10

Abstract

A Nb₃Sn superconducting wire precursor includes a tubular stabilizing copper layer provided on an outer periphery, a tubular first Sn diffusion barrier layer provided inside the stabilizing copper layer, anda superconducting element group precursor housed inside the first Sn diffusion barrier layer. The superconducting element group precursor includes a plurality of Sn-based element wires and a plurality of Nb-based superconducting element wire precursors. The plurality of Sn-based element wires each include a first stabilizing matrix including Cu or a Cu-based alloy, and one or more Sn-based filaments embedded in the first stabilizing matrix and including Sn or a Sn-based alloy. The plurality of Nb-based superconducting element wire precursors each include a second stabilizing matrix including Cu or a Cu-based alloy, and a plurality of Nb-based reinforcing filaments including Nb or a Nb-based alloy and a plurality of Nb-based superconducting filament precursors having a diameter larger than that of the Nb-based reinforcing filaments, both of which are embedded in the second stabilizing matrix, and/or the plurality of Nb-based superconducting element wire precursors include a plurality of Nb-based reinforcing sub-elements each including a third stabilizing matrix including Cu or a Cu-based alloy, and a plurality of Nb-based reinforcing filaments embedded in the third stabilizing matrix and including Nb or a Nb-based alloy, and a plurality of Nb-based superconducting sub-element precursors each including a fourth stabilizing matrix including Cu or a Cu-based alloy, and a plurality of Nb-based superconducting filament precursors embedded in the fourth stabilizing matrix and including Nb or a Nb-based alloy and having a diameter larger than that of the Nb-based reinforcing filaments.

Anmelder

Firma

FURUKAWA ELECTRIC CO., LTD.

Land

🇯🇵 Japan

Fachgebiete