Fatigue tests of YBCO coated conductors

S. Bamba, Y. Tanaka, T. Ando, H. Ueda, Atsushi 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 - 2008 Feb 1

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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, H.; Ishiyama, Atsushi; 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, H. ; Ishiyama, Atsushi ; 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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