Investigation of aluminium stabilized superconductors

Author

Dolgosheev, P.I. ; Svalov, G.G. ; Sytnikov, V.E. ; Rychagov, A.V.

Author_Institution

Res. & Dev. Inst. for Cable Ind, Moscow, Russia

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

294

Lastpage

297

Abstract

Two types of aluminium stabilized superconducting cables: soldered and pressed have been under investigation. The paper describes cables, manufactured from multifilamentary NbTi/Cu wires in high purity aluminium, or copper-clad aluminium with a cross-section of 4/spl times/9 and 4.6/spl times/37 mm/sup 2/. Dependence of contact resistance on the "superconductor-aluminium matrix" interface, on transport current and magnetic field from 0 to 3 T, have been studied. Contact resistance was varied within the range from 1.4/spl times/10/sup -11/ to 2.2/spl times/10/sup -10/ Ohm/spl times/m. Dependence of contact resistance on the cable construction and electrical and physical characteristics of its components was analysed theoretically and experimentally. Discrepancy between experimental results and classic theory predictions is discussed.<>

Keywords

aluminium; cable testing; contact resistance; copper; magnetic fields; multifilamentary superconductors; niobium alloys; superconducting cables; superconducting device testing; titanium alloys; 0 to 3 T; 1.4E-11 to 2.2E-10 ohm; NbTi-Cu-Al; aluminium stabilized superconducting cables; cable construction; contact resistance; copper-clad aluminium; high purity aluminium; magnetic field; multifilamentary NbTi/Cu wires; pressed cables; soldered cables; superconductor-aluminium matrix interface; transport current; Aluminum; Contact resistance; Copper; Multifilamentary superconductors; Niobium compounds; Pulp manufacturing; Superconducting cables; Superconductivity; Titanium compounds; Wires;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402546

Filename

402546