Preparation of Bi-Pb-Sr-Ca-Cu-O High-Tc Superconductor from Coprecipitated Oxalates

Kiichi Oda, Hitoshi Kitaguchi, Jun Takada, Akiyoshi Osaka, Yoshinari Miura, Yasunori Ikeda, Mikio Takano, Yoshichika Bando, Yoichi Tomii, Yoshio Oka, Naoichi Yamamoto, Yasuo Takeda, Hiromasa Mazaki

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In order to prepare the single high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system, the chemical compositions and the heat treatment conditions were examined. The addition of the excess amount of calcium and the two-step heat treatment were more effective to promote the formation of the high-Tc phase and to shorten the heat treatment time. The sample with the nominal composition of Bi0.96Pb0.24Sr1.0Ca1.1Cu1.6Ox heat treated at 850°C for 24h-70h was mostly composed of high-Tc phase. The content of Pb in the sample was considerably decreased by the heat treatment and reduced to 1/2-1/3 of its initial value.

Original languageEnglish
Pages (from-to)959-964
Number of pages6
JournalJournal of the Japan Society of Powder and Powder Metallurgy
Issue number9
Publication statusPublished - 1988

ASJC Scopus subject areas

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


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