Progress in Superconductivity

The Korean Superconductivity Society (한국초전도학회)
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Controlling the initial conditions of precursor powders and its effects on the phase evolution and $J_c$ properties of Bi-2223/Ag tapes

  • Jiang, C.H (Materials Engineering Dept., Korea Institute of Machinery & Materials) ;
  • Yoo, J.M (Institute of Metal Research, Chinese Academy of Science) ;
  • Kim, H.D (Materials Engineering Dept., Korea Institute of Machinery & Materials) ;
  • Kang, S.C (Materials Engineering Dept., Korea Institute of Machinery & Materials) ;
  • Chung, H.S (Materials Engineering Dept., Korea Institute of Machinery & Materials) ;
  • Wang, Y.Z (Materials Engineering Dept., Korea Institute of Machinery & Materials) ;
  • Ko, J.W (Dept. of Molecular Science and Technology, Ajou University) ;
  • Qiao, G.W (Institute of Metal Research, Chinese Academy of Science)
  • Published : 2001.01.01
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Abstract

By varying fabricating process, precursor powders with different initial conditions were prepared. Subsequently, Bi-2223/Ag tapes were made through these powders. The effects of precursor powders on the phase evolution and Jr properties of Bi-2223/Ag tapes were studied along with several thermomechanical cycles. Our results showed that the initial conditions of precursor powders could strongly influence the phase formation rate and $J_{c}$ value in final tapes. The factors of precursor powders that influence the phase formation and $J_{c}$ of Bi-2223/Ag tapes must be studied and optimized in combination.ion.

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