Superconductive YBa2Cu3O7-x fibres from an extrudable dispersion of a particulate precursor

C. H. Hsu, H. W. Jacobson, Justin Schwartz, J. D. Connolly, R. F. Tietz

Research output: Contribution to journalArticle

Abstract

A particulate precursor of YBa2Cu3O7-x was dispersed in a concentrated acetic/formic acid solution of yttrium, barium and copper acetates to form an extensible, viscous mixture. This dispersion was stable, unlike one prepared from superconductive YBa2Cu3O7-x itself. Fibres extruded from the viscous dispersion were fired at 935 °C in the presence of oxygen. Although the fired fibres were not fully densified, they had a sharp Meissner transition temperature at 90 K and an apparent critical current density (Jc) of 900 A cm-2 (1800 A cm-2 corrected for porosity) at 77 K. The superconducting fibre was sensitive to magnetic field, which is evidence of weak coupling between the superconducting grains.

Original languageEnglish (US)
Pages (from-to)3467-3470
Number of pages4
JournalJournal of Materials Science
Volume30
Issue number13
DOIs
StatePublished - Jan 1 1995

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formic acid
Fibers
Critical current density (superconductivity)
Yttrium
Formic acid
Barium
Acetic acid
Acetic Acid
Superconducting transition temperature
Copper
Acetates
Porosity
Magnetic fields
Oxygen
barium copper yttrium oxide

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Hsu, C. H. ; Jacobson, H. W. ; Schwartz, Justin ; Connolly, J. D. ; Tietz, R. F. / Superconductive YBa2Cu3O7-x fibres from an extrudable dispersion of a particulate precursor. In: Journal of Materials Science. 1995 ; Vol. 30, No. 13. pp. 3467-3470.
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Superconductive YBa2Cu3O7-x fibres from an extrudable dispersion of a particulate precursor. / Hsu, C. H.; Jacobson, H. W.; Schwartz, Justin; Connolly, J. D.; Tietz, R. F.

In: Journal of Materials Science, Vol. 30, No. 13, 01.01.1995, p. 3467-3470.

Research output: Contribution to journalArticle

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T1 - Superconductive YBa2Cu3O7-x fibres from an extrudable dispersion of a particulate precursor

AU - Hsu, C. H.

AU - Jacobson, H. W.

AU - Schwartz, Justin

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AU - Tietz, R. F.

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AB - A particulate precursor of YBa2Cu3O7-x was dispersed in a concentrated acetic/formic acid solution of yttrium, barium and copper acetates to form an extensible, viscous mixture. This dispersion was stable, unlike one prepared from superconductive YBa2Cu3O7-x itself. Fibres extruded from the viscous dispersion were fired at 935 °C in the presence of oxygen. Although the fired fibres were not fully densified, they had a sharp Meissner transition temperature at 90 K and an apparent critical current density (Jc) of 900 A cm-2 (1800 A cm-2 corrected for porosity) at 77 K. The superconducting fibre was sensitive to magnetic field, which is evidence of weak coupling between the superconducting grains.

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