Processing and transport properties of high-J{sub c} silver-clad Bi-2223 tapes and coils
- Intermagnetics General Corporation, Guilderland, NY (United States); and others
The powder-in-tube process has been used to fabricate long lengths of flexible, high-J{sub c}, silver-clad Bi-2223 HTS conductors. By improving thermomechanical processing and precursor powder preparation, the authors have succeeded in achieving J{sub c} values of {>=}4 x 10{sup 4} A/cm{sup 2} at liquid nitrogen (77K) temperature and >10{sup 5} A/cm{sup 2} at liquid helium (4.2K) and liquid neon (27K) temperatures in short tape samples. Detailed measurements with high applied magnetic fields are reported. Several long tapes up to 10 m in length have also been fabricated and cowound into small superconducting pancake coils by the {open_quotes}wind- and react{close_quotes} approach. Transport measurements at 77 and 4.2K for these coils are also reported.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 433434
- Journal Information:
- Journal of Electronic Materials, Vol. 22, Issue 10; Other Information: PBD: Oct 1993
- Country of Publication:
- United States
- Language:
- English
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Processing and transport properties of high J{sub c} silver clad Bi-2223 tapes and coils
Recent developments in processing HTS silver-clad Bi-2223 tapes, coils and test magnets