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Fabrication and properties of BiSrCaCuO superconductors

  • International Conference On Superconductivity—I
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Abstract

Fabrication processes for increasing the critical current densityJ c in BiSrCaCuO superconductor have been studied. Calcining mixtures of raw material in a reduced oxygen partial pressure or in vacuum after in-air calcination is found to be effective. Intermediate cold work (ICW) i.e. uniaxial pressing, cold flat rolling, etc. incorporated in the sintering Agsheathed tape is also effective for raisingJ c. From a preliminary experiment on Ag-added tape sample, a combination of both processes appeared to be most effective. The highestJ c obtained is 4.37×104 A/cm2 at 4.2 K and 12 Tesla. Effects of additional element Ag etc. onJ c have also been described.

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Authors and Affiliations

  1. National Research Institute for Metals, 1-2-1, Sengen, 305, Tsukuba, Japan

    Y Tanaka, T Asano, M Fukutomi & H Maeda

Authors
  1. Y Tanaka
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  2. T Asano
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  3. M Fukutomi
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  4. H Maeda
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Tanaka, Y., Asano, T., Fukutomi, M. et al. Fabrication and properties of BiSrCaCuO superconductors. Bull. Mater. Sci. 14, 227–233 (1991). https://doi.org/10.1007/BF02747320

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  • DOI: https://doi.org/10.1007/BF02747320

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