Transport and magnetic properties of Ag-sheathed Bi-2223 tapes

Author

Reissner, Michael ; Hadaier, Gerhard ; Steiner, Walter ; Fuchs, Gunter ; Gladun, Alexander ; Fischer, Klaus

Author_Institution

Inst. fur Angewandte und Tech. Phys., Wien Univ., Austria

Volume

30

Issue

2

fYear

1994

fDate

3/1/1994 12:00:00 AM

Firstpage

1175

Lastpage

1177

Abstract

Bi-2223 tapes were investigated by transport and magnetic measurements. Two different regimes concerning the field dependence of the critical current density J_c are obtained. At T⩾6 K J _c follows an exponential law. From analysis of magnetic relaxation measurements by means of distributions of activation energies an explanation of the low temperature behaviour of J_c, in terms of a change in pinning behaviour is possible

Keywords

bismuth compounds; calcium compounds; composite superconductors; critical current density (superconductivity); flux pinning; high-temperature superconductors; magnetic relaxation; silver; strontium compounds; 6 K; Ag-BiSrCaCuO; Ag-sheathed Bi-2223 tapes; activation energies; critical current density; exponential law; field dependence; low temperature behaviour; magnetic properties; magnetic relaxation measurements; pinning behaviour; transport measurements; Creep; Critical current density; Magnetic analysis; Magnetic field measurement; Magnetic hysteresis; Magnetic moments; Magnetic properties; Magnetic variables measurement; Performance evaluation; Temperature dependence;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312202

Filename

312202