Chemical Stability of the Bi-2223 Phase

Yoshihiro Kusano, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano, Toshio Egi

Research output: Contribution to journalArticlepeer-review


Chemical stability of the Bi-2223 phase has been studied for the samples Bi0.9Pb0.2SrCaCu1.6O2 Annealing of the bulk samples below 800°C leads to precipitation of the 3321 phase identified as Sr2.5Bi0.5Pb3Ca2CuOz. The precipitation of the 3321 phase from the 2223 phase decreases the volume fraction of the 2223 phase but Tc (χ) remains unchanged. It was found by XRD and SQUID measurements and SEM observation that, through reheating at 850°C after heating at 750°C, the 3321 phase disappeares and the volume fraction of the 2223 phase perfectly recovers.

Original languageEnglish
Pages (from-to)1057-1060
Number of pages4
JournalJournal of the Japan Society of Powder and Powder Metallurgy
Issue number11
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry


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