✦ LIBER ✦
Electrical properties of Bi-2223/Ag hot extruded tapes: Comparison between Short and long specimens
✍ Scribed by Luciano Martini; Ernesto Marelli; Vanni Ottoboni; Sergio Zannella
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 563 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
✦ Synopsis
Long Bi-2223/Ag tapes were successfully fabricated by means of hot extrusion and repeated cold-rolling and sintering processes. On short pressed tapes, after the third thermomechanical cycle, critical current densities Je 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 Je values higher than 10 kA/cm 2 at 77 K, 0 T were obtained. The Ic uniformity of long tapes was found to be within 10% for all the investigated regions.