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

Research output: Contribution to journalArticle

2 Citations (Scopus)

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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Oxide superconductors
Oxalates
Coprecipitation
Heat treatment
Superconducting materials
Melting point
Pyrolysis
Crystalline materials

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method. / Oka, Yoshio; Yamamoto, Naoichi; Tomii, Yoichi; Kitaguchi, Hitoshi; Oda, Kiichi; Takada, Jun; Katamoto, Tsutomu; Horiishi, Nanao.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 35, No. 5, 07.1988, p. 419-423.

Research output: Contribution to journalArticle

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, vol. 35, no. 5, pp. 419-423.
Oka, Yoshio ; Yamamoto, Naoichi ; Tomii, Yoichi ; Kitaguchi, Hitoshi ; Oda, Kiichi ; Takada, Jun ; Katamoto, Tsutomu ; Horiishi, Nanao. / Study on oxide superconductor Bi-Sr-Ca-Cu-O system prepared by oxalate coprecipitation method. In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 1988 ; Vol. 35, No. 5. pp. 419-423.
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