Critical current measurements on Ag/Bi-Pb-Sr-Ca-Cu-O composite coils as a function of temperature and external magnetic field

Author

Schwenterly, S.W. ; Lue, J.W. ; Lubell, M.S. ; Luton, J.N. ; Joshi, C.H.

Author_Institution

Oak Ridge Nat. Lab., TN, USA

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

949

Lastpage

952

Abstract

Transport critical currents have been measured on two coils of high-temperature superconducting (HTSC) tape as a function of temperature and external magnetic field. The sample coil windings have inside and outside diameters of roughly 25 mm and 40 mm, respectively, and a length of 50 mm. They contain about 300 turns of filamentary Bi-Pb-Sr-Ca-Cu-O 2223 HTSC material sheathed in Ag to form a 0.18-mm by 2.54-mm tape, with a total length of about 30 m. Critical current results are reported for temperatures between 4.2 K and 90 K, in magnetic fields ranging up to 5.5 T.<>

Keywords

bismuth compounds; calcium compounds; composite superconductors; critical currents; high-temperature superconductors; lead compounds; silver; strontium compounds; superconducting magnets; superconductive tunnelling; 0 to 5.5 T; 0.18 mm; 2.54 mm; 25 mm; 30 m; 4.2 to 90 K; 40 mm; 50 mm; Ag-BiPbSrCaCuO; coil windings; critical currents; external magnetic field; high temperature superconductivity; tape; temperature dependence; Critical current; Current measurement; High temperature superconductors; Magnetic field measurement; Magnetic materials; Superconducting coils; Superconducting filaments and wires; Superconducting films; Superconducting materials; Temperature distribution;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233853

Filename

233853