Development and characterization of aluminum clad superconductors

Author

Kanithi, H. ; Phillips, D. ; King, C. ; Zeitlin, B.

Author_Institution

Intermagnetics Gen. Corp., Waterbury, CT, USA

Volume

24

Issue

2

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

1029

Lastpage

1032

Abstract

A fabrication technique capable of high-volume production is described that was developed to clad conventional NbTi/Cu composite conductors with high-purity aluminum. Various sizes and shapes of practical superconductors were clad using aluminum of initial residual resistance ratios (RRR) ranging from 200:1 to 3000:1. The quality of bond between Al and Cu was investigated metallographically and by shear-strength tests. Electrical properties, such as the current-carrying capacity and RRR as a function of magnetic field for several Al-stabilized conductors, were measured. The results of the investigation are presented and the particular advantages of the Al-clad conductors over the fully copper-stabilized configurations are discussed.

Keywords

cladding techniques; composite superconductors; copper; niobium alloys; titanium alloys; type II superconductors; NbTi-Cu; NbTi-Cu-Al; bond; current-carrying capacity; fabrication technique; high-volume production; magnetic field; quality; residual resistance ratios; shear-strength tests; Aluminum; Conductors; Copper; Fabrication; Magnetic field measurement; Niobium compounds; Production; Shape; Superconductivity; Titanium compounds;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.11403

Filename

11403