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Title: Method and apparatus for forming high-critical-temperature superconducting layers on flat and/or elongated substrates

Abstract

An elongated, flexible superconductive wire or strip is fabricated by pulling it through and out of a melt of metal oxide material at a rate conducive to forming a crystalline coating of superconductive metal oxide material on an elongated, flexible substrate wire or strip. A coating of crystalline superconductive material, such as Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}, is annealed to effect conductive contact between adjacent crystalline structures in the coating material, which is then cooled to room temperature. The container for the melt can accommodate continuous pass-through of the substrate through the melt. Also, a second pass through container can be used to simultaneously anneal and overcoat the superconductive coating with a hot metallic material, such as silver or silver alloy. A hollow, elongated tube casting method of forming an elongated, flexible superconductive wire includes drawing the melt by differential pressure into a heated tubular substrate. 8 figs.

Inventors:
Publication Date:
Research Org.:
Solar Energy Research Inst., Golden, CO (USA)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (USA)
OSTI Identifier:
5806012
Patent Number(s):
PATENTS-US-A7432938
Application Number:
ON: DE91011668; PPN: US 7-432938
Assignee:
Dept. of Energy TIC; EDB-91-090067
DOE Contract Number:  
AC02-83CH10093
Resource Type:
Patent Application
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; FABRICATION; ANNEALING; CRYSTALLIZATION; ELECTRICAL EQUIPMENT; INVENTIONS; METALS; OXIDES; SUBSTRATES; SUPERCONDUCTING WIRES; CHALCOGENIDES; ELEMENTS; EQUIPMENT; HEAT TREATMENTS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SUPERCONDUCTORS; WIRES; 426001* - Engineering- Superconducting Devices & Circuits- (1990-); 360601 - Other Materials- Preparation & Manufacture

Citation Formats

Ciszek, T.F. Method and apparatus for forming high-critical-temperature superconducting layers on flat and/or elongated substrates. United States: N. p., 1989. Web.
Ciszek, T.F. Method and apparatus for forming high-critical-temperature superconducting layers on flat and/or elongated substrates. United States.
Ciszek, T.F. Tue . "Method and apparatus for forming high-critical-temperature superconducting layers on flat and/or elongated substrates". United States.
@article{osti_5806012,
title = {Method and apparatus for forming high-critical-temperature superconducting layers on flat and/or elongated substrates},
author = {Ciszek, T.F.},
abstractNote = {An elongated, flexible superconductive wire or strip is fabricated by pulling it through and out of a melt of metal oxide material at a rate conducive to forming a crystalline coating of superconductive metal oxide material on an elongated, flexible substrate wire or strip. A coating of crystalline superconductive material, such as Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}, is annealed to effect conductive contact between adjacent crystalline structures in the coating material, which is then cooled to room temperature. The container for the melt can accommodate continuous pass-through of the substrate through the melt. Also, a second pass through container can be used to simultaneously anneal and overcoat the superconductive coating with a hot metallic material, such as silver or silver alloy. A hollow, elongated tube casting method of forming an elongated, flexible superconductive wire includes drawing the melt by differential pressure into a heated tubular substrate. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {11}
}