Critical current density of (Bi,Pb)-Sr-Ca-Cu-O filament prepared by suspension spinning method
- Department of Materials Science Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya (Japan)
A high {ital Tc} superconducting (Bi,Pb)-Sr-Ca-Cu-O filament was prepared using a combined technique of suspension spinning and densification of the pyrolyzed filaments by pressing and sintering. The effects of the Jc of the filament obtained on the spinning and densificating conditions were examined. The Jc was dependent on the composition of starting powder and a kind of suspension medium. The Jc was strongly affected by pyrolyzed condition and densification time. The highest Jc value at 77 K, 0 T of 1900 A/cm{sup 2} was attained for the filament sintered under optimum sintering condition. The grains in the filament were oriented with {ital c}-axis perpendicular to the filament surface and the coupling of the grains in the perpendicular to the filament surface was weaker than that for the parallel direction in the filament surface.
- OSTI ID:
- 6338818
- Journal Information:
- Journal of Materials Research; (USA), Vol. 5:9; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH OXIDES
CRITICAL CURRENT
CALCIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
FABRICATION
LEAD OXIDES
STRONTIUM OXIDES
CURRENT DENSITY
EXPERIMENTAL DATA
GRAIN ORIENTATION
LOW TEMPERATURE
POWDERS
PRESSING
SINTERING
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL STRUCTURE
CURRENTS
DATA
ELECTRIC CURRENTS
INFORMATION
LEAD COMPOUNDS
MATERIALS WORKING
MICROSTRUCTURE
NUMERICAL DATA
ORIENTATION
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
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