Microstructures of the melt-powder-melt-growth processed YBaCuO
Journal Article
·
· Journal of Materials Research; (USA)
- Superconductivity Research Laboratory, International Superconductivity Technology Center, 1-10-13, Shinonome, Koto-ku, Tokyo 135, Japan (JP)
Microstructures of two MPMG processed YBaCuO materials with and without Y{sub 2}BaCuO{sub 5} (211) inclusions were investigated by transmission electron microscopy. Using the MPMG process, it is possible to change the quantity of the 211 inclusions in the YBa{sub 2}Cu{sub 3}O{sub 7} (123) matrix. We prepared two YBaCuO samples with 0 and 30 vol. % 211 and with respective critical current density values of 2000 and 30 000 A/cm{sup 2} at 77 K and 1 T (magnetic field parallel to the c-axis). As possible pinning centers, we found stacking faults in the 123 matrix. However, we observed no appreciable change in their number and structure by introducing the 211 inclusions. Therefore, the difference in {ital J}{sub {ital c}} values can be attributed to the 211 inclusion itself.
- OSTI ID:
- 5683365
- Journal Information:
- Journal of Materials Research; (USA), Journal Name: Journal of Materials Research; (USA) Vol. 6:7; ISSN JMREE; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
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Wed Jan 31 23:00:00 EST 1990
· Modern Physics Letters B; (USA)
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OSTI ID:6427223
Stress release at Y{sub 2}BaCuO{sub 5} inclusions in fast melt processed YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} observed by micro-Raman spectroscopy
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Thu May 01 00:00:00 EDT 1997
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·
OSTI ID:503575
Influence of excess platinum and yttrium containing additives on the microstructural and phase formation kinetics in the YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} system
Book
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Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:187918
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
ELECTRIC CURRENTS
ELECTRON MICROSCOPY
HIGH-TC SUPERCONDUCTORS
INCLUSIONS
MAGNETIC FLUX
MICROSCOPY
MICROSTRUCTURE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
QUATERNARY COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
ELECTRIC CURRENTS
ELECTRON MICROSCOPY
HIGH-TC SUPERCONDUCTORS
INCLUSIONS
MAGNETIC FLUX
MICROSCOPY
MICROSTRUCTURE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
QUATERNARY COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES