Descriptive model for the critical current as a function of axial strain in Bi-2212/Ag wires

Author

Ten Haken, Bennie ; Godeke, Arno ; Schuver, Henk-Jan ; Ten Kate, Herman H J

Author_Institution

Low Temp. Div., Twente Univ., Enschede, Netherlands

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2720

Lastpage

2723

Abstract

A descriptive model is presented for the critical current of a Bi-2212 conductor that is axially deformed. This model is based on previously published critical current measurements on axially compressed and elongated Bi-2212 wires. The validity of the model is investigated by applying an additional pre-strain at room temperature. The experimental results on the pre-strained wires are in reasonable agreement with the prediction. The description for the critical-current reduction in Bi-2212 is applied in a model for a bend conductor. This model predicts the critical current as a function of the bending radius in a wire and a tape conductor

Keywords

bending; bismuth compounds; calcium compounds; composite superconductors; critical currents; high-temperature superconductors; silver; strontium compounds; superconducting tapes; 300 K; Bi-2212/Ag wires; Bi₂Sr₂CaCu₂O-Ag; axial strain; bend conductor; critical current; tape conductor; Capacitive sensors; Conductors; Critical current; Current measurement; Deformable models; Grain boundaries; Strain measurement; Temperature; Tensile strain; Wires;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511436

Filename

511436