Quench propagation in large area YBCO films

V. S. Vysotsky, Yu A. Ilyin, Takanobu Kiss, M. Takeo, M. Lorenz, H. Hochmuth, J. Schneider, R. Woerdenweber

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We studied quench propagation in double-sided samples of YBCO thin films covered by a gold top layer and deposited on sapphire wafers. The length of the YBCO structures was up to 0.5 m. A critical current density ∼2-3 MA per centimeter square at 77.8 K was found over the entire YBCO film. Quench development in large-area YBCO thin film appears to be a complicated process. Depending on test conditions and external circuit parameters, normal spots may appear and disappear during the quench process. In double-sided samples quench development is strongly affected by thermal interaction between the two films through the substrate's heat conductivity. This thermal conduction should be considered during the design of fault current limiters made from such films. Mutual thermal interaction of films through a substrate may also be used for acceleration of normal zone propagation using active or passive heaters on opposite sides of the substrate.

Original languageEnglish
Pages (from-to)1089-1092
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume9
Issue number2 PART 1
DOIs
Publication statusPublished - Dec 1 1999

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propagation
Substrates
Fault current limiters
Thin films
Aluminum Oxide
thin films
heaters
Sapphire
Gold
Thermal conductivity
critical current
sapphire
interactions
wafers
gold
current density
conduction
heat
conductivity
Networks (circuits)

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Vysotsky, V. S., Ilyin, Y. A., Kiss, T., Takeo, M., Lorenz, M., Hochmuth, H., ... Woerdenweber, R. (1999). Quench propagation in large area YBCO films. IEEE Transactions on Applied Superconductivity, 9(2 PART 1), 1089-1092. https://doi.org/10.1109/77.783487

Quench propagation in large area YBCO films. / Vysotsky, V. S.; Ilyin, Yu A.; Kiss, Takanobu; Takeo, M.; Lorenz, M.; Hochmuth, H.; Schneider, J.; Woerdenweber, R.

In: IEEE Transactions on Applied Superconductivity, Vol. 9, No. 2 PART 1, 01.12.1999, p. 1089-1092.

Research output: Contribution to journalArticle

Vysotsky, VS, Ilyin, YA, Kiss, T, Takeo, M, Lorenz, M, Hochmuth, H, Schneider, J & Woerdenweber, R 1999, 'Quench propagation in large area YBCO films', IEEE Transactions on Applied Superconductivity, vol. 9, no. 2 PART 1, pp. 1089-1092. https://doi.org/10.1109/77.783487
Vysotsky VS, Ilyin YA, Kiss T, Takeo M, Lorenz M, Hochmuth H et al. Quench propagation in large area YBCO films. IEEE Transactions on Applied Superconductivity. 1999 Dec 1;9(2 PART 1):1089-1092. https://doi.org/10.1109/77.783487
Vysotsky, V. S. ; Ilyin, Yu A. ; Kiss, Takanobu ; Takeo, M. ; Lorenz, M. ; Hochmuth, H. ; Schneider, J. ; Woerdenweber, R. / Quench propagation in large area YBCO films. In: IEEE Transactions on Applied Superconductivity. 1999 ; Vol. 9, No. 2 PART 1. pp. 1089-1092.
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