Critical current density enhancement in rolled multifilament Bi-2223 HTS composites
Conference
·
OSTI ID:570232
- American Superconductor Corp., Westborough, MA (United States); and others
At 77 K and self-field, we report transport critical density (J{sub c}) of 58 kA/cm{sup 2} in rolled 19 and 85 filament Bi-2223 HTS tapes. For an 85-filament tape with transport J{sub c} of 50 kA/cm{sup 2}, transport J{sub c} of greater than 80 kA/cm{sup 2} electrical performance, increasing the number of the strong links between the 2223 colonies is believed to be the most important factor. Microstructure studies on these samples suggest that there is still great potential for further J{sub c} enhancement.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 570232
- Report Number(s):
- LA-UR--97-2628; CONF-9706119--; ON: DE98000820
- Country of Publication:
- United States
- Language:
- English
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