Advertisement

Development of High Tc Superconducting Wire by Powder Method

  • Masayuki Nagata
  • Kazuya Ohmatsu
  • Hidehito Mukai
  • Takeshi Hikata
  • Yoshikado Hosoda
  • Nobuhiro Shibuta
  • Ken-Ichi Sato
  • Hajime Hitotsuyanagi
  • Maumi Kawashima
Conference paper

Abstract

Ag-sheathed high Tc superconducting wires of YBa2Cu3O7-x and Bi0.8Pb0.2SrCaCU1.5Ox were developed. Improvements in the density and the orientation of crystals brought about by press processing have been investigated, and by adopting adequate processing procedures the critical current densities were increased up to 4140A/ cm2 and 4400A/ cm2 for Ag-sheathed YBa2Cu3O7-x and Bi0.8Pb0.2SrCaCu1.5Ox superconductors, respectively.

After investigating Jc distribution and the bending tolerance of Ag-sheathed YBa2Cu3O7-x tapes, we made a coil with an inner diameter of 50 mm. This superconducting coil generated 47gauss at the center and 64gauss on the conductor with a transport current of 35A.

Keywords

Critical Current Density Reduction Ratio Transport Current Press Processing Oxygen Annealing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    K. Ohiatsu, K. Ohkura, H. Takei, S. Yazu and H. Hitotsuyanagi: Jpn. J. of Appl. Phys. vol.26, pp.1207–1208, (1987) Suppl.26–3,Google Scholar
  2. K. Ohiatsu, K. Ohkura, H. Takei, S. Yazu and H. Hitotsuyanagi: Proc. 18th Int. Conf. on Low Temperature Phys., Kyoto, 1987.Google Scholar
  3. [2]
    M. Okada, A. Okayaia, T. Moriioto, M. Matsumoto, K. Aihara, and S. Matsuda: Jpn. J . of Appl. Phys. vol.27, pp.L185-L187,(1988)ADSCrossRefGoogle Scholar
  4. [3]
    K. Kawashiia, M. Nagata, Y. Hosoda, S. Takano, N. Shibuta, H. Mukai and T. Hikata: ’88 Appl. Superconductivity Conference, Sanfrancisco, CA, August 21–25, 1988. paper MI-BGoogle Scholar
  5. [4]
    H. Maeda, Y. Tanaka, M. Fukutomi, and T. Asano : Jpn. J. Appl. Phys. vol.27,pp.L209–L212 (1988)ADSCrossRefGoogle Scholar
  6. [5]
    R. J. Cava et al. A paper presented at Int’l Conf on High Tc S.C and Material and Mechanism of Superconductivity, Interlaken, Feb.29-March3, 1988 ; Physica C153–155 (1988) pp.5B0–585, North-Holland, Amsterdam.Google Scholar
  7. [6]
    T.Nakahara : “ Development of Superconducting Material and Impacts on the Social Economy. ” A paper which will appear in this conference (ISS’88)Google Scholar

Copyright information

© Springer Japan 1989

Authors and Affiliations

  • Masayuki Nagata
    • 1
  • Kazuya Ohmatsu
    • 1
  • Hidehito Mukai
    • 1
  • Takeshi Hikata
    • 1
  • Yoshikado Hosoda
    • 1
  • Nobuhiro Shibuta
    • 1
  • Ken-Ichi Sato
    • 1
  • Hajime Hitotsuyanagi
    • 1
  • Maumi Kawashima
    • 1
  1. 1.Sumitomo Electric Industries, Ltd.Konohana-ku, Osaka, 554Japan

Personalised recommendations