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

Conference · Mon Feb 01 04:00:00 EST 1993

OSTI ID:6563410

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: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6563410
• Report Number(s): ANL/MCT/CP-79135; CONF-930202--7; ON: DE93010674
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
ELEMENTS
FABRICATION
FILMS
HEAT TREATMENTS
LEAD COMPOUNDS
LEAD OXIDES
METALS
OXIDES
OXYGEN COMPOUNDS
SILVER
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING COILS
SUPERCONDUCTING FILMS
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0065-0273 K
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS