Cryogenic Stability of LTS/HTS Hybrid Conductors

Author

Yanagi, Nagato ; Bansal, Gourab ; Hemmi, Tsutomu ; Takahata, Kazuya ; Mito, Toshiyuki

Author_Institution

Nat. Inst. for Fusion Sci., Gifu

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2486

Lastpage

2489

Abstract

Hybrid-type superconductors are proposed by utilizing a bundle of high-temperature superconducting (HTS) tapes as a stabilizer of low-temperature superconducting (LTS) cables in order to extend the basic research on the cryogenic stability of solid composite-type superconductors and to explore its potential. Since the effective resistivity of HTS is significantly lower than that of pure metals of equivalent cross-sectional area, a bundle of HTS tapes may work as a good stabilizer to achieve high current density. Short sample experiments have been carried out by modifying the aluminum-stabilized superconductor used for the LHD helical coils and the cryogenic stability was examined.

Keywords

aluminium; high-temperature superconductors; low-temperature techniques; stability; superconducting cables; superconducting tapes; aluminum-stabilized superconductor; cryogenic stability; high-temperature superconducting tapes; hybrid-type superconductors; large helical device coils; low-temperature superconducting cables; solid composite-type superconductors; Conductivity; Conductors; Cryogenics; Current density; High temperature superconductors; Solids; Stability; Superconducting cables; Superconducting films; Superconductivity; Bi-2223; HTS; cryogenic stability; hybrid conductor; pure aluminum;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.898172

Filename

4277822