Composite with Y-Ba-Cu-O superconductive film
This patent describes a composite consisting essentially of a crystalline superconductive film, a microscopically pore-free zirconium dioxide film and a substrate. The superconductive film having a composition represented by the formula YBa{sub {ital x}}Cu{sub {ital y}}O{sub {ital z}}, where x ranges from about 1.9 to about 2.1, where y ranges from about 2.9 to about 3.1, and where z ranges from about 6.9 to about 7.0 The superconductive film having a zero resistance transition temperature of at least about 38 K and a thickness at least sufficient to be continuous ranging from about 0.4 micron to about 0.3 micron, the substrate being selected from the group consisting of monocrystalline elemental silicon, polycrystalline elemental silicon, oxidized monocrystalline element silicon, oxidized polycrystalline elemental silicon, amorphous silicon dioxide, monocrystalline aluminum oxide and polycrystalline aluminum oxide.
- Assignee:
- General Electric Co., Schenectady, NY (USA)
- Patent Number(s):
- A; US 4959346
- Application Number:
- PPN: US s 7-354569
- OSTI ID:
- 6197331
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COMPOSITE MATERIALS
COPPER COMPOUNDS
COPPER OXIDES
FILMS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
SUBSTRATES
SUPERCONDUCTORS
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES