Effect of V, Ir-Doping on the Jc Properties of Bi2223 Tapes

H. Maeda, K. Kakimoto, M. Kikuchi, K. Watanabe

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We prepared Ag-sheathed mono-core tapes and multifilamentary tapes with 19 filaments by the powder-intube method, using V- and Ir- doped B12223 powder with a doping amount x less than 0.15. In the doped tapes two effects are overlapped: One is the decrease in Jc due to some weak links caused by precipitates such as Sr-V-O oxides, and the other is the increase in 3C with the doping content due to the enhancement of Bi2223 phase formation. This results in a minimum in Jc at x=0.05. The second effect becomes stronger in the V-doping, because of the great enhancement of Bi2223 phase formation. In the Ir-doped tapes the Jc values decrease monotonically with the doping content. For the multifilamentary tapes the V-doping is very effective to obtain high Ic values.

Original languageEnglish
Pages (from-to)2541-2544
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2 PART 2
Publication statusPublished - 1999

All Science Journal Classification (ASJC) codes

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


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