Processing and properties of BSCCO 2212 Ag and Ag alloy multifilament round wires
Journal Article
·
· Advances in Cryogenic Engineering
OSTI ID:482064
- IGC Advanced Superconductors, Waterbury, CT (United States)
Ag-sheathed Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} round wires having 37, 259, and 703 filaments were fabricated by the oxide-powder-in-tube (OPIT) method. The wires were heat treated using step-solidification melt processing in pure O{sub 2}. In addition to pure silver sheaths, wires with Ag-Al and Ag-Zr sheaths were also fabricated. The critical current density (J{sub c}) at 4.2 K, zero field, shows significant improvement in strain tolerance for bending strains up to 1% for dispersion strengthened multifilament 2212 wire designs over wires with pure silver sheaths. The transport critical current density at liquid helium temperature (4.2 K) approached 200,000 A/cm{sup 2} in zero field and 45,000 A/cm{sup 2} at 15 Tesla. At liquid neon temperature (27 K) the J{sub c} was about 75,000 A/cm{sup 2} zero field and dropped rapidly to zero at 10 Tesla.
- DOE Contract Number:
- FG02-92ER81461
- OSTI ID:
- 482064
- Report Number(s):
- CONF-950722--
- Journal Information:
- Advances in Cryogenic Engineering, Journal Name: Advances in Cryogenic Engineering Vol. 42B; ISSN 0065-2482; ISSN ACYEAC
- Country of Publication:
- United States
- Language:
- English
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