Thin film seeds for melt processing textured superconductors for practical applications
Abstract
A method of fabricating bulk superconducting material such as RBa.sub.2 Cu.sub.3 O.sub.7-.delta. where R is La or Y comprising depositing a thin epitaxially oriented film of Nd or Sm (123) on an oxide substrate. The powder oxides of RBa.sub.2 Cu.sub.3 O.sub.7-.delta. or oxides and/or carbonates of R and Ba and Cu present in mole ratios to form RBa.sub.2 Cu.sub.3 O.sub.7-.delta., where R is Y or La are heated, in physical contact with the thin film of Nd or Sm (123) on the oxide substrate to a temperature sufficient to form a liquid phase in the oxide or carbonate mixture while maintaining the thin film solid to grow a large single domain 123 superconducting material. Then the material is cooled. The thin film is between 200 .ANG. and 2000 .ANG.. A construction prepared by the method is also disclosed.
- Inventors:
-
- Downers Grove, IL
- Hinsdale, IL
- West Lafayette, IN
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 872142
- Patent Number(s):
- 5869431
- Assignee:
- University of Chicago (Chicago, IL)
- 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:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- film; seeds; melt; processing; textured; superconductors; practical; applications; method; fabricating; bulk; superconducting; material; rba; cu; 7-; delta; comprising; depositing; epitaxially; oriented; 123; oxide; substrate; powder; oxides; carbonates; mole; ratios; form; heated; physical; contact; temperature; sufficient; liquid; phase; carbonate; mixture; maintaining; solid; grow; single; domain; cooled; 200; ang; 2000; construction; prepared; disclosed; oxide substrate; comprising depositing; conducting material; liquid phase; temperature sufficient; superconducting material; film solid; mole ratio; physical contact; textured superconductor; single domain; carbonate mixture; powder oxides; mole ratios; melt processing; fabricating bulk; epitaxially oriented; bulk superconducting; practical applications; /505/427/
Citation Formats
Veal, Boyd W, Paulikas, Arvydas, Balachandran, Uthamalingam, and Zhong, Wei. Thin film seeds for melt processing textured superconductors for practical applications. United States: N. p., 1999.
Web.
Veal, Boyd W, Paulikas, Arvydas, Balachandran, Uthamalingam, & Zhong, Wei. Thin film seeds for melt processing textured superconductors for practical applications. United States.
Veal, Boyd W, Paulikas, Arvydas, Balachandran, Uthamalingam, and Zhong, Wei. Fri .
"Thin film seeds for melt processing textured superconductors for practical applications". United States. https://www.osti.gov/servlets/purl/872142.
@article{osti_872142,
title = {Thin film seeds for melt processing textured superconductors for practical applications},
author = {Veal, Boyd W and Paulikas, Arvydas and Balachandran, Uthamalingam and Zhong, Wei},
abstractNote = {A method of fabricating bulk superconducting material such as RBa.sub.2 Cu.sub.3 O.sub.7-.delta. where R is La or Y comprising depositing a thin epitaxially oriented film of Nd or Sm (123) on an oxide substrate. The powder oxides of RBa.sub.2 Cu.sub.3 O.sub.7-.delta. or oxides and/or carbonates of R and Ba and Cu present in mole ratios to form RBa.sub.2 Cu.sub.3 O.sub.7-.delta., where R is Y or La are heated, in physical contact with the thin film of Nd or Sm (123) on the oxide substrate to a temperature sufficient to form a liquid phase in the oxide or carbonate mixture while maintaining the thin film solid to grow a large single domain 123 superconducting material. Then the material is cooled. The thin film is between 200 .ANG. and 2000 .ANG.. A construction prepared by the method is also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}
Works referenced in this record:
Processing of large YBa2 Cu3Ox domains for levitation applications by a Nd1+x Ba2−x Cu3 Oy-Seeded melt-growth technique
journal, November 1994
- Todt, V. R.; Sengupta, S.; Shi, Donglu
- Journal of Electronic Materials, Vol. 23, Issue 11
High‐quality c ‐axis oriented superconducting Nd 1+ x Ba 2− x Cu 3 O 7− d thin films deposited by the laser ablation method
journal, April 1995
- Badaye, Massoud; Wang, Furen; Kanke, Yukio
- Applied Physics Letters, Vol. 66, Issue 16