Ceramic processing of YBa/sub 2/Cu/sub 3/O/sub x/ based high-T/sub c/ superconductors

Journal Article · Wed Nov 30 23:00:00 EST 1988 · IEEE Trans. Compon., Hybrids, Manuf. Technol.; (United States)

DOI:https://doi.org/10.1109/33.16674· OSTI ID:6046478

Yan, M F; O'Bryan, H M; Gallagher, P K; Rhodes, W W; Ling, H C

Ceramic processing of YBa/sub 2/Cu/sub 3/O/sub x/ based superconductors and process-related problems are described. Conditions for calcination, sintering, and microstructural development are important considerations for the superconducting properties. The authors examine different forming techniques to prepare superconducting components with different size, shape, and configuration. They also identify and discuss five problem areas related to (1) incomplete decomposition of BaCO/sub 3/ precursor; (2) oxidation of YBa/sub 2/Cu/sub 3/O/sub x/ ceramics; (3) sensitivity of the YBa/sub 2/Cu/sub 3/O/sub x/ phase to water; (4) reactivity of the YBa/sub 2/Cu/sub 3/O/sub x/ phase with substrates and co-firing materials; and (5) low critical current density in bulk ceramics of YBa/sub 2/Cu/sub 3/O/sub x/.

• Research Organization: 9522750; AT and T Bell Labs., ERC, Princeton, NJ (US)
• OSTI ID: 6046478
• Journal Information: IEEE Trans. Compon., Hybrids, Manuf. Technol.; (United States), Journal Name: IEEE Trans. Compon., Hybrids, Manuf. Technol.; (United States) Vol. 11:4; ISSN ITTED
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
656100 -- Condensed Matter Physics-- Superconductivity
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM CARBONATES
BARIUM COMPOUNDS
BARIUM OXIDES
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENT DENSITY
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FABRICATION
HIGH TEMPERATURE
MICROSTRUCTURE
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
PRECURSOR
PROCESSING
SINTERING
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES