Properties of Li-doped, polycrystalline, melt-textured, BiSrCaCuO tapes prepared by powder-in-tube processing

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The effects of Li on Ag-sheathed Bi2Sr2CaCu2O8+x tapes have been studied by considering Li substitutions for Sr and Cu and Li additions to stoichiometric Bi2Sr2CaCu2O8+x. The materials were prepared by the powder-in-tube method. As the Li substitution reduces the melting temperature by as much as 160 K, careful control of the processing conditions is required to obtain superconductivity in Li-doped samples. Here we report on the effects upon Jc(B,T) and upon Tc. Jc(B) at 4.2 K and 20 K are reported. Due to a lack of phase purity, Li reduced the overall Jc of the tapes. At 20 K, however, the Li-doped material is much less dependent upon B, indicating that Li substitution may provide enhanced pinning at high field.

Original languageEnglish (US)
Pages (from-to)2403-2404
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 4
Publication statusPublished - Dec 1 1991


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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