ELECTRICAL-PROPERTIES OF BI-2223 AG HOT EXTRUDED TAPES - COMPARISON BETWEEN SHORT AND LONG SPECIMENS

Authors
MARTINI L MARELLI E OTTOBONI V ZANNELLA S
Citation
L. Martini et al., ELECTRICAL-PROPERTIES OF BI-2223 AG HOT EXTRUDED TAPES - COMPARISON BETWEEN SHORT AND LONG SPECIMENS, Cryogenics, 34, 1994, pp. 797-800
Citations number
4
Categorie Soggetti
Physics, Applied",Thermodynamics
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
34
Year of publication
1994
Supplement
ICEC
Pages
797 - 800
Database
ISI
SICI code
0011-2275(1994)34:<797:EOBAHE>2.0.ZU;2-5
Abstract
Long Bi-2223/Ag tapes were successfully fabricated by means of hot ext rusion and repeated cold-rolling and sintering processes. On short pre ssed tapes, after the third thermomechanical cycle, critical current d ensities J(c) as high as 36 kA/cm(2) at 77 K and 64 kA/cm(2) at 65 K, 0 T were achieved. On 5 m long tapes J(c) values higher than 10 kA/cm( 2) at 77 K, 0 T were obtained. The I-c uniformity of long tapes was fo und to be within 10% for all the investigated regions.