Strain-tolerant cable using Bi-2212 superconductor

Author

McIntyre, P.M. ; Diaczenko, N. ; Elliott, T. ; Soika, R. ; Yavuz, M. ; Motowidlo, L. ; Gan Liang

Author_Institution

Dept. of Phys., Texas A&M Univ., College Station, TX, USA

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

1142

Lastpage

1145

Abstract

The high strain sensitivity of Bi-2212 is a major obstacle for its use as a practical conductor in high-field magnet applications. Most efforts to improve the mechanical behavior of Bi-2212 focus on strengthening the silver matrix by means of alloying. We are reporting the design and preliminary testing of a strain-tolerant Bi-2212 cable that takes a different approach: Instead of reinforcing the conductor, it channels mechanical stress and strain away from it by prudent design of a Cable-in-Conduit (CIC) assembly. Six strands of Bi-2212 are cabled around a thin-walled Inconel X 750 tube and then sheathed in an outer armor that is drawn onto the 6-on-1 cable configuration.

Keywords

bismuth compounds; calcium compounds; chromium alloys; high-temperature superconductors; multifilamentary superconductors; nickel alloys; strontium compounds; superconducting magnets; 6-on-1 cable configuration; Bi-2212 superconductor; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O; CrNi; cable-in-conduit assembly; high strain sensitivity; high-field magnet applications; mechanical behavior; mechanical stress; sheath; silver matrix; strain-tolerant Bi-2212 cable; strain-tolerant cable; testing; thin-walled Inconel X 750 tube; Alloying; Cable shielding; Conductors; Magnetic field induced strain; Mechanical cables; Silver; Stress; Superconducting cables; Superconducting magnets; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828435

Filename

828435