Processing and transport properties of high J{sub c} silver clad Bi-2223 tapes and coils

Conference · Mon Feb 01 00:00:00 EST 1993

OSTI ID:10145835

Haldar, P; Hoehn, Jr, J G ^[1]; Balachandran, U ^[2]; Motowidlo, L R ^[3]

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1. Intermagnetics General Corp., Guilderland, NY (United States)
2. Argonne National Lab., IL (United States). Materials and Components Technology Div.
3. IGC/Advanced Superconductors, Inc., Waterbury, CT (United States)

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 thermo-mechanical processing and precursor powder preparationwe have succeeded in achieving J{sub c}`s exceeding 4 {times} 10{sup 4} A/cm{sup 2} at liquid nitrogen (77K) and > 10{sup 5} A/cm{sup 2} at liquid helium (4.2K) and liquid neon (27K) temperatures for short tapesamples. Detailed measurements with high applied magnetic fields are reported. Several long tapes up to 10 meters in length have also been fabricated and co-wound into small superconducting pancake coils using the ``wind-and-react`` approach. Transport measurements at 77K and 4.2K for these coils are also reported.

• Research Organization: Argonne National Lab., IL (United States). Materials and Components Technology Div.
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10145835
• Report Number(s): ANL/MCT/CP-79135; CONF-930202-7; ON: DE93010674
• Resource Relation: Conference: Annual meeting of the Metallurgical Society,Denver, CO (United States),21-25 Feb 1993; Other Information: PBD: Feb 1993
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
SUPERCONDUCTING FILMS
CRITICAL CURRENT
FABRICATION
SUPERCONDUCTING COILS
CURRENT DENSITY
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0065-0273 K
BISMUTH OXIDES
LEAD OXIDES
STRONTIUM OXIDES
CALCIUM OXIDES
COPPER OXIDES
SILVER
HEAT TREATMENTS
665412
360207
SUPERCONDUCTING DEVICES