Effect of Ba addition on the formation of the high-Tc phase in the Bi,Pb-Sr-Ca-Cu-O system

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

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Abstract

The effect of Ba addition on the formation and critical temperature Tc was studied. Bi0.7Pb0.3Sr1-αBaαCaCu1.8Ox was prepared by the conventional ceramic method. High-Tc phase was formed without coexistence of the low-Tc phase and 24 angstrom phase in the sample of α≤0.5 by heat treatment at 845°C for 45-140h. The electrical resistance of the sample with a composition of α=0.1 heated at 845°C for 140h dropped to zero at 105K and a diamagnetic response was observed. The addition of a small amount of Ba promoted the formation of the high-Tc phase but Ba2+ ion was hardly substituted in the high-Tc phase.

Original languageEnglish
Pages (from-to)1003-1009
Number of pages7
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume35
Issue number9
Publication statusPublished - Dec 1988
Externally publishedYes

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ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Takada, J., Kitaguchi, H., Oda, K., Osaka, A., Miura, Y., Ikeda, Y., Takano, M., Oka, Y., Yamamoto, N., Tomii, Y., & Takeda, Y. (1988). Effect of Ba addition on the formation of the high-Tc phase in the Bi,Pb-Sr-Ca-Cu-O system. Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 35(9), 1003-1009.