Process for preparing superconducting film having substantially uniform phase development
Abstract
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.
- Inventors:
-
- Littleton, CO
- Lakewood, CO
- Evergreen, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 870211
- Patent Number(s):
- 5476837
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Classifications (CPCs):
-
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; 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; /505/205/
Citation Formats
Bharacharya, Raghuthan, Parilla, Philip A, and Blaugher, Richard D. Process for preparing superconducting film having substantially uniform phase development. United States: N. p., 1995.
Web.
Bharacharya, Raghuthan, Parilla, Philip A, & Blaugher, Richard D. Process for preparing superconducting film having substantially uniform phase development. United States.
Bharacharya, Raghuthan, Parilla, Philip A, and Blaugher, Richard D. Sun .
"Process for preparing superconducting film having substantially uniform phase development". United States. https://www.osti.gov/servlets/purl/870211.
@article{osti_870211,
title = {Process for preparing superconducting film having substantially uniform phase development},
author = {Bharacharya, Raghuthan and Parilla, Philip A and Blaugher, Richard D},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}
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Works referenced in this record:
YBaCuO and TlBaCaCuO Superconductor Thin Films via an Electrodeposition Process
journal, January 1992
- Bhattacharya, R. N.; Parilla, P. A.; Noufi, R.
- Journal of The Electrochemical Society, Vol. 139, Issue 1
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
- DeLuca, John A.; Karas, Pamela L.; Tkaczyk, J. E.
- Physica C: Superconductivity, Vol. 205, Issue 1-2
Magnetic relaxation, flux creep and the distribution of pinning potentials in ceramic Tl-1223 HTSC
journal, June 1991
- Mittag, M.; Rosenberg, M.; Himmerich, B.
- Superconductor Science and Technology, Vol. 4, Issue 6