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Quench propagation velocities of high-temperature superconducting film prepared on single-crystal substrate.

[In Japanese. / En japonais.]

Author(s) : KUDO-ARAI Y., KUBOTA H., YAMAZAKI M., YOSHINO H., ANDO K., INOUE K.

Type of article: Article

Summary

The authors have performed precise, experimental and theoretical studies of the quench propagation velocities of the YBCO high-temperature superconducting film prepared on lanthanum-aluminium oxide single-crystal substrates by pulsed laser deposition. In the experimental studies, they determined the quench propagation velocities using strip-shaped YBCO films prepared on lanthanum-aluminium oxide single-crystal substrate with many voltage terminals. In a theoretical analysis, the quench propagation velocities were found to be expressed by a function of the specific heat, the density and the thermal conductivity of the substrate, a temperature difference between the operation temperature and critical temperature, the strip width of the superconducting film and the power of joule heating for the unit area. The theoretical estimations were in good agreement with the obtained quench propagation velocities from this experiment.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1998-2687
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 32 - n. 12
  • Publication date: 1997
  • Document available for consultation in the library of the IIR headquarters only.

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