Study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method

Yoshio Oka, Naoichi Yamamoto, Yoichi Tomii, Hitoshi Kitaguchi, Kiichi Oda, Jun Takada, Tsutomu Katamoto, Nanao Horiishi

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Abstract

The oxalate coprecipitation method was applied to the preparation of the high-T c superconductor BiSrCaCu 2O x. Crystalline phases obtained by heat treatment were studied in connection with superconducting properties. The pyrolysis of the coprecipitates was completed below 500°C and subsequent heat treatment above 800°C resulted in the formation of the layered structure characteristic of the superconducting phase. The particle shape was of thin flakes. The superconducting phase with T c of 110K was formed by heat treatment just below the melting point, which was enhanced in the melt-cooled sample.

Original languageEnglish
Pages (from-to)419-423
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume35
Issue number5
Publication statusPublished - Jul 1988
Externally publishedYes

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ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Oka, Y., Yamamoto, N., Tomii, Y., Kitaguchi, H., Oda, K., Takada, J., Katamoto, T., & Horiishi, N. (1988). Study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method. Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 35(5), 419-423.