Low temperature sintering of YBa sub 2 Cu sub 3 O sub y ceramics by silver compounds and silver ionic conduction
- Kumamoto Univ. (Japan)
- Univ. Tuebingen (Germany)
Low temperature sintering of YBa{sub 2}Cu{sub 3}O{sub y} ceramics by various Ag compounds was studied by in situ resistivity measurement using a four-probe method and silver ionic conductivity measurement using four silver ion conduction electrodes of Ag-{beta}{double prime}-Al{sub 2}O{sub 3}. Even silver ionic compounds promoted sintering, indicating that the Ag{sup +} ion promotes sintering in the grain boundaries. The activation energies of Ag{sup +} ionic conductivities of the Ag-added samples (0.2 {minus} 1.4 eV) were much lower than those in the YBa{sub 2}Cu{sub 3}O bulk (2.3 {minus} 2.5 eV), indicating that the Ag{sup +} ion easily diffuses in the grain boundaries at low temperature.
- OSTI ID:
- 7143606
- Journal Information:
- Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 98:1; ISSN 0022-4596; ISSN JSSCB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FABRICATION
GRAIN BOUNDARIES
INFORMATION
IONIC CONDUCTIVITY
IONS
MICROSTRUCTURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SILVER COMPOUNDS
SILVER IONS
SINTERING
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES