Process for preparing superconducting film having substantially uniform phase development
- Littleton, CO
- Lakewood, CO
- Evergreen, CO
A process for preparing a superconducting film, such as a thallium-barium-calcium-copper oxide superconducting film, having substantially uniform phase development. The process comprises providing an electrodeposition bath having one or more soluble salts of one or more respective potentially superconducting metals in respective amounts adequate to yield a superconducting film upon subsequent appropriate treatment. Should all of the metals required for producing a superconducting film not be made available in the bath, such metals can be a part of the ambient during a subsequent annealing process. A soluble silver salt in an amount between about 0.1% and about 4.0% by weight of the provided other salts is also provided to the bath, and the bath is electrically energized to thereby form a plated film. The film is annealed in ambient conditions suitable to cause formation of a superconductor film. Doping with silver reduces the temperature at which the liquid phase appears during the annealing step, initiates a liquid phase throughout the entire volume of deposited material, and influences the nucleation and growth of the deposited material.
- Research Organization:
- Midwest Research Institute, Kansas City, MO (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-83CH10093
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Number(s):
- US 5476837
- OSTI ID:
- 870211
- Country of Publication:
- United States
- Language:
- English
YBaCuO and TlBaCaCuO Superconductor Thin Films via an Electrodeposition Process
|
journal | January 1992 |
The preparation of “1223” Tl-Ca-Ba-Cu-oxide superconducting films via the reaction of silver-containing spray deposited Ca-Ba-Cu-Oxide with thallium oxide vapor
|
journal | January 1993 |
Magnetic relaxation, flux creep and the distribution of pinning potentials in ceramic Tl-1223 HTSC
|
journal | June 1991 |
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Related Subjects
preparing
superconducting
film
substantially
uniform
phase
thallium-barium-calcium-copper
oxide
comprises
providing
electrodeposition
bath
soluble
salts
respective
potentially
metals
amounts
adequate
yield
subsequent
appropriate
treatment
required
producing
available
ambient
annealing
silver
salt
amount
weight
provided
electrically
energized
form
plated
annealed
conditions
suitable
formation
superconductor
doping
reduces
temperature
liquid
appears
step
initiates
throughout
entire
volume
deposited
material
influences
nucleation
growth
soluble salts
ambient conditions
silver salt
electrically energized
superconducting film
comprises providing
oxide superconducting
copper oxide
liquid phase
substantially uniform
process comprises
soluble salt
deposited material
annealing step
thallium-barium-calcium-copper oxide
subsequent appropriate
annealing process
potentially superconducting
electrodeposition bath
entire volume
superconductor film
appropriate treatment
conducting film
superconducting metal
uniform phase
barium-calcium-copper oxide
conducting metal
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