Thin film seeds for melt processing textured superconductors for practical applications

Veal, Boyd W; Paulikas, Arvydas; Balachandran, Uthamalingam; Zhong, Wei

Title: 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:

Veal, Boyd W ^[1]; Paulikas, Arvydas ^[1]; Balachandran, Uthamalingam ^[2]; Zhong, Wei ^[3]

Downers Grove, IL
Hinsdale, IL
West Lafayette, IN

Issue Date:: 1999-01-01

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

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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
Y10S505/733 - Rapid solidification, e.g. quenching, gas-atomizing, melt-spinning, roller-quenching
Y10S505/78 - Yttrium and barium-, e.g. YBa2Cu307

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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.

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                    Veal, Boyd W, Paulikas, Arvydas, Balachandran, Uthamalingam, & Zhong, Wei. Thin film seeds for melt processing textured superconductors for practical applications.  United States.

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                    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.

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@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}

}

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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
https://doi.org/10.1007/BF02649958

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
https://doi.org/10.1063/1.113926

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Similar Records

Title: Thin film seeds for melt processing textured superconductors for practical applications

Abstract

Citation Formats

Processing of large YBa2 Cu3Ox domains for levitation applications by a Nd1+x Ba2−x Cu3 Oy-Seeded melt-growth technique journal, November 1994

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

Processing of large YBa2 Cu3Ox domains for levitation applications by a Nd1+x Ba2−x Cu3 Oy-Seeded melt-growth technique
journal, November 1994

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