Formation of film superconductors by metallo-organic deposition
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):
- US 7962088; A
- Application Number:
- PPN: US s 7-186627; TRN: 90-036698
- OSTI ID:
- 6527942
- Resource Relation:
- Patent File Date: 27 Apr 1988
- Country of Publication:
- United States
- Language:
- English
Similar Records
Metalorganic deposition of superconducting E sub u -B sub a -C sub u O thin films by rapid thermal annealing
Patterning thin film superconductors using focused beam techniques
Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
SUPERCONDUCTING FILMS
FABRICATION
YTTRIUM COMPOUNDS
SUPERCONDUCTIVITY
CHEMICAL COMPOSITION
GRAIN ORIENTATION
MATERIALS TESTING
ORGANOMETALLIC COMPOUNDS
SAPPHIRE
TITANATES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CORUNDUM
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
MICROSTRUCTURE
MINERALS
ORGANIC COMPOUNDS
ORIENTATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TESTING
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
426001* - Engineering- Superconducting Devices & Circuits- (1990-)
360204 - Ceramics
Cermets
& Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies