Improved press forging of Ba/sub 2/YCu/sub 3/O/sub x/ superconductor
Journal Article
·
· Appl. Phys. Lett.; (United States)
An improved press forging technique has yielded ceramic Ba/sub 2/YCu/sub 3/O/sub x/ with a very high degree of orientation and mechanical integrity. The as-forged samples are dense and tetragonal, and have an oxygen content of approx. =6.3. By a partial oxidation of the samples, a superconducting skin 20--100 ..mu..m thick is formed on the outer surface. Transport measurements on this skin show a J/sub c/ >3000 Acm/sup 2/ with an improved field dependence as compared with randomly oriented samples. The restriction of oxidation to the thin outer skin has reduced the microcracking which accompanies the oxidation of tetragonal Ba/sub 2/YCu/sub 3/O/sub x/.
- Research Organization:
- ATandT Bell Laboratories, Murray Hill, New Jersey 07974
- OSTI ID:
- 5256081
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 52:21; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
·
Mon Oct 01 00:00:00 EDT 1990
· Journal of Solid State Chemistry; (USA)
·
OSTI ID:6083623
Cu-O vibrations of Ba/sub 2/YCu/sub 3/O/sub x/
Journal Article
·
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·
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Conference
·
Wed Jul 01 00:00:00 EDT 1987
· Advanced Ceramic Materials; (USA)
·
OSTI ID:5124194
Related Subjects
36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
CRACKS
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
DATA
ELECTRIC CURRENTS
EXPERIMENTAL DATA
FABRICATION
FILMS
FORGING
GRAIN ORIENTATION
INFORMATION
MATERIALS WORKING
MICROSTRUCTURE
NUMERICAL DATA
ORIENTATION
OXIDATION
OXIDES
OXYGEN COMPOUNDS
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
CRACKS
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
DATA
ELECTRIC CURRENTS
EXPERIMENTAL DATA
FABRICATION
FILMS
FORGING
GRAIN ORIENTATION
INFORMATION
MATERIALS WORKING
MICROSTRUCTURE
NUMERICAL DATA
ORIENTATION
OXIDATION
OXIDES
OXYGEN COMPOUNDS
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES