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Title: Method of producing superconducting fibers of bismuth strontium calcium copper oxide (Bi(2212) and Bi(2223))

Abstract

Fibers of Bi(2212) have been produce by pendant drop melt extraction. This technique involves the end of a rod of Bi(2212) melted with a hydrogen-oxygen torch, followed by lowering onto the edge of a spinning wheel. The fibers are up to 15 cm in length with the usual lateral dimensions, ranging from 20 um to 30 um. The fibers require a heat treatment to make them superconducting.

Inventors:
 [1]
  1. Mankato, MN
Issue Date:
Research Org.:
Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
OSTI Identifier:
868005
Patent Number(s):
5053384
Application Number:
07/492,932
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; producing; superconducting; fibers; bismuth; strontium; calcium; copper; oxide; 2212; 2223; produce; pendant; drop; melt; extraction; technique; involves; rod; melted; hydrogen-oxygen; torch; followed; lowering; edge; spinning; wheel; 15; cm; length; lateral; dimensions; ranging; 20; 30; require; heat; treatment; copper oxide; heat treatment; technique involves; lateral dimensions; strontium calcium; superconducting fibers; pendant drop; melt extraction; hydrogen-oxygen torch; superconducting fiber; producing superconducting; drop melt; conducting fiber; /505/29/148/428/

Citation Formats

Schwartzkopf, Louis A. Method of producing superconducting fibers of bismuth strontium calcium copper oxide (Bi(2212) and Bi(2223)). United States: N. p., 1991. Web.
Schwartzkopf, Louis A. Method of producing superconducting fibers of bismuth strontium calcium copper oxide (Bi(2212) and Bi(2223)). United States.
Schwartzkopf, Louis A. Tue . "Method of producing superconducting fibers of bismuth strontium calcium copper oxide (Bi(2212) and Bi(2223))". United States. https://www.osti.gov/servlets/purl/868005.
@article{osti_868005,
title = {Method of producing superconducting fibers of bismuth strontium calcium copper oxide (Bi(2212) and Bi(2223))},
author = {Schwartzkopf, Louis A},
abstractNote = {Fibers of Bi(2212) have been produce by pendant drop melt extraction. This technique involves the end of a rod of Bi(2212) melted with a hydrogen-oxygen torch, followed by lowering onto the edge of a spinning wheel. The fibers are up to 15 cm in length with the usual lateral dimensions, ranging from 20 um to 30 um. The fibers require a heat treatment to make them superconducting.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {10}
}

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