Formation of film superconductors by metallo-organic deposition
Patent
·
OSTI ID:6527942
This patent describes a method for producing thin film superconductor materials. It comprises forming a solution from the neodecanoates of yttrium, barium, and copper metals; depositing a film of the solution onto a substrate. The substrate selected from the group consisting of strontium titanate, barium titanate, and sapphire; pyrolyzing the film in an oxygen-containing environment at a first temperature of about 500{degrees}C. for about 5 minutes, so as to decompose the neodecanoates of yttrium, barium, and copper into a film containing oxides of yttrium, barium, and copper, the pyrolyzing occurring substantially immediately after the depositing step; and heating the metal oxide film to a second temperature of about 850{degrees}C. for a duration of approximately no more than 2 minutes and allowing the metal oxide film to cool to room temperature, then heating the metal oxide film to a third temperature of about 920{degrees}C. for a duration of approximately no more than 1 minute.
- Assignee:
- General Motors Corp., Detroit, MI (USA)
- Patent Number(s):
- A; US 7962088
- Application Number:
- PPN: US s 7-186627
- OSTI ID:
- 6527942
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CORUNDUM
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
FILMS
GRAIN ORIENTATION
MATERIALS TESTING
MICROSTRUCTURE
MINERALS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
ORIENTATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SAPPHIRE
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TESTING
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CORUNDUM
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
FILMS
GRAIN ORIENTATION
MATERIALS TESTING
MICROSTRUCTURE
MINERALS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
ORIENTATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SAPPHIRE
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TESTING
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS