DocumentCode
1477771
Title
Examination of current limiting mechanisms in monocore Bi2 Sr2Ca2Cu3Ox tape with high critical current density
Author
Polyanskii, A. ; Feldmann, D.M. ; Patnaik, S. ; Jiang, J. ; Cai, X. ; Larbalestier, D. ; DeMoranville, K. ; Yu, D. ; Parrella, R.
Author_Institution
Appl. Supercond. Center, Wisconsin Univ., Madison, WI, USA
Volume
11
Issue
1
fYear
2001
fDate
3/1/2001 12:00:00 AM
Firstpage
3269
Lastpage
3272
Abstract
Magneto-optical imaging, electromagnetic measurements and SEM have been used for the characterization of a monocore BSCCO tape made by oxide powder-in-tube process which had a transport Jc (77 K, 0 T) of 37 kA/cm2. Our study evaluates the connectivity between superconducting grains and reconstructs the local current distribution at <10 μm scale. Some local regions are found to carry up to 180 kA/cm2 at 77 K, a new record for BSCCO wires
Keywords
bismuth compounds; calcium compounds; critical current density (superconductivity); high-temperature superconductors; magneto-optical effects; strontium compounds; superconducting tapes; 77 K; Bi2Sr2Ca2Cu3O10 ; SEM; connectivity; current limiting mechanisms; electromagnetic measurements; high critical current density; high temperature superconductor; local current distribution; magneto-optical imaging; monocore Bi2Sr2Ca2Cu3Ox tape; oxide powder-in-tube process; superconducting grains; Bismuth compounds; Critical current density; Current distribution; Current limiters; Electromagnetic measurements; Image reconstruction; Magnetic field measurement; Magnetooptic effects; Strontium; Superconducting films;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/77.919760
Filename
919760
Link To Document