Critical currents, magnetic relaxation, and microstructure in zone-melted YBa sub 2 Cu sub 3 O sub x
Conference
·
· IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:5929850
- Argonne National Lab., IL (United States)
- Notre Dame Univ., IN (United States)
This paper reports on extruded YBa{sub 2}Cu{sub 3}O{sub x} wires zone-melted to develop high textured microstructures. The zone-melted wires exhibit large magnetic hysteresis and transport J{sub c} values relative to conventional bulk YBa{sub 2}Cu{sub 3}O{sub x}. Transmission electron microscopy observations indicate unique grain boundary features which are likely to be responsible for reduced weak-link effects. Large amounts of intragranular defects such as dislocations and Y{sub 2}BaCuO{sub 5} particles have been observed in the sample matrices. The dislocations are possibly connected with the greatly increased magnetic hysteresis.
- OSTI ID:
- 5929850
- Report Number(s):
- CONF-900944--
- Conference Information:
- Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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· Applied Physics Letters; (USA)
·
OSTI ID:5776710
Related Subjects
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
ELECTRIC CURRENTS
GRAIN BOUNDARIES
HYSTERESIS
MAGNETIC PROPERTIES
MELTING
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTING WIRES
TEXTURE
TRANSITION ELEMENT COMPOUNDS
WIRES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZONE MELTING
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
ELECTRIC CURRENTS
GRAIN BOUNDARIES
HYSTERESIS
MAGNETIC PROPERTIES
MELTING
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTING WIRES
TEXTURE
TRANSITION ELEMENT COMPOUNDS
WIRES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZONE MELTING