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Development of REBCO coated conductors on textured metallic substrates

Nagaishi, T. ; Shingai, Y. ; Konishi, M. ; Taneda, T. ; Ota, H. ; Honda, G. ; Kato, T. ; Ohmatsu, K.

Physica C: Superconductivity and its applications, Oct 15, 2009, Vol.469(15-20), p.1311(5) [Periódico revisado por pares]

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  • Título:
    Development of REBCO coated conductors on textured metallic substrates
  • Autor: Nagaishi, T. ; Shingai, Y. ; Konishi, M. ; Taneda, T. ; Ota, H. ; Honda, G. ; Kato, T. ; Ohmatsu, K.
  • Assuntos: Thin Films -- Usage ; Superconductors -- Usage
  • É parte de: Physica C: Superconductivity and its applications, Oct 15, 2009, Vol.469(15-20), p.1311(5)
  • Descrição: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.physc.2009.05.253 Byline: T. Nagaishi, Y. Shingai, M. Konishi, T. Taneda, H. Ota, G. Honda, T. Kato, K. Ohmatsu Keywords: REBCO; Clad type substrate; I.sub.c ; PLD Abstract: A high T.sub.c superconducting coated conductor appears promising for AC electronic power applications such as power cables and motors due to its potential of low AC loss. We use bi-axially textured substrates for making coated conductors to take advantage of higher deposition rate and fewer numbers of buffer layers on them compared with ion beam assisted deposition (IBAD) substrates. However, the bi-axially textured substrates such as NiW tapes have magnetism, and therefore AC loss is increased. To minimize magnetism we developed a clad type substrate. The clad type substrate is made by laminating a thin bi-axially textured film on a noncrystalline base substrate. In developing the clad type substrate, we clarified that the improvement of the substrate surface flatness leads higher texture and the crystallinity of buffer layers and a superconducting layer, resulting in high critical current (I.sub.c). We acquired the maximum I.sub.c of 380A/cm with the 2[mu]m thick GdBaCuO superconducting film. Author Affiliation: Sumitomo Electric Industries, Ltd., 1-1-3, Shimaya, Konohana-ku, Osaka 554-0024, Japan Article History: Received 28 October 2008
  • Idioma: English

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