Fatigue tests of YBCO coated conductors

S. Bamba, Y. Tanaka, T. Ando, Hiroshi Ueda, A. Ishiyama, Y. Yamada, Y. Shiohara

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this paper, we report the fatigue characteristics of IBAD/PLD YBCO coated conductors. A YBCO coated conductor used in the superconducting coil of a SMES system is repeatedly subjected to mechanical tensile or compressive strain due to the Lorentz force during electrical charging or discharging. The superconducting characteristic of this conductor may deteriorate because of this cyclic strain. Therefore, it is necessary to investigate the effect of cyclic strain on the superconducting characteristics of YBCO coated conductors that have a laminated structure. We developed an experimental apparatus with a U-shaped sample holder in order to apply cyclic strain to the sample tape. This apparatus was used to perform the fatigue tests on YBCO coated conductors in liquid nitrogen in the absence of an external magnetic field. The strain cycles with the maximum strain max (zero external strain max zero external strain) were applied and repeated up to 5000 times, and the I c measurements were performed at max. Therefore, the application of cyclic strain with max ranging from 0.3% to 0.5% did not result in any significant deterioration of the superconducting characteristics of the conductor.

Original languageEnglish
Article number012170
JournalJournal of Physics: Conference Series
Volume97
Issue number1
DOIs
Publication statusPublished - Feb 1 2008
Externally publishedYes

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fatigue tests
conductors
Lorentz force
holders
deterioration
liquid nitrogen
tapes
charging
coils
cycles
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bamba, S., Tanaka, Y., Ando, T., Ueda, H., Ishiyama, A., Yamada, Y., & Shiohara, Y. (2008). Fatigue tests of YBCO coated conductors. Journal of Physics: Conference Series, 97(1), [012170]. https://doi.org/10.1088/1742-6596/97/1/012170

Fatigue tests of YBCO coated conductors. / Bamba, S.; Tanaka, Y.; Ando, T.; Ueda, Hiroshi; Ishiyama, A.; Yamada, Y.; Shiohara, Y.

In: Journal of Physics: Conference Series, Vol. 97, No. 1, 012170, 01.02.2008.

Research output: Contribution to journalArticle

Bamba, S, Tanaka, Y, Ando, T, Ueda, H, Ishiyama, A, Yamada, Y & Shiohara, Y 2008, 'Fatigue tests of YBCO coated conductors', Journal of Physics: Conference Series, vol. 97, no. 1, 012170. https://doi.org/10.1088/1742-6596/97/1/012170
Bamba, S. ; Tanaka, Y. ; Ando, T. ; Ueda, Hiroshi ; Ishiyama, A. ; Yamada, Y. ; Shiohara, Y. / Fatigue tests of YBCO coated conductors. In: Journal of Physics: Conference Series. 2008 ; Vol. 97, No. 1.
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