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Digitale Medien

Superconductive YBa2Cu3O7−x fibres from an extrudable dispersion of a particulate precursor (1995)

Hsu, C. -H. ; Jacobson, H. W. ; Schwartz, J. T. ; [weitere]

Springer

Journal of materials science 30 (1995), S. 3467-3470

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Details

ISSN: 1573-4803

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau

Notizen: 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 (J c) 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.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00349896

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