Superconducting YBa sub 2 Cu sub 3 O sub 7 minus x fibers from the thermoplastic gel method
- Department of Materials Science and Engineering, University of California, Los Angeles, California 90024 (US)
The successful fabrication of ceramic superconducting YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} fibers has been investigated. A new method was proposed for synthesis of the fibers through a solution route. The thermoplastic gels were synthesized using Y, Ba, Cu, ethoxides, and diethylenetriamine. The fibers were drawn from the reheated gels. The fibers were characterized by x-ray diffraction, SEM, and shrinkage ratio measurements. The fired and then annealed fiber is shown to have a superconducting transition temperature of 91 K (onset) and zero resistance temperature of 84 K. With regard to the fired fibers, it is found that the surface area increased and superconducting transition temperature decreased with increasing organic content in the initial gel. The usefulness of this method is shown and the structure of the synthesized gel is discussed.
- OSTI ID:
- 5525358
- Journal Information:
- Journal of Materials Research; (USA), Vol. 4:4; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BARIUM OXIDES
FABRICATION
COPPER OXIDES
SUPERCONDUCTING WIRES
YTTRIUM OXIDES
AMINES
ANNEALING
FIBERS
GELS
SCANNING ELECTRON MICROSCOPY
SHRINKAGE
SURFACES
THERMOPLASTICS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COLLOIDS
COPPER COMPOUNDS
DIFFRACTION
DISPERSIONS
ELECTRON MICROSCOPY
HEAT TREATMENTS
MATERIALS
MICROSCOPY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
SCATTERING
SYNTHETIC MATERIALS
TRANSITION ELEMENT COMPOUNDS
WIRES
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360204 - Ceramics
Cermets
& Refractories- Physical Properties