Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (IV)

Yoshihiro Kusano, Kazuhiro Yamaguchi, Minoru Fukuhara, Akira Doi, Toshio Takada, Masashi Fujiwara, Jun Takada

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Abstract

In order to study the effects of Ba-addition to the high-Tc phase in the Bi-Pb-Sr-Ca-Cu-O system, measurements of X-ray diffraction and DC resistance, SEM observations and EDX analysis were made for samples with compositions of Bi:Pb:Sr:Ca:Cu: Ba=0.9:0.2:1.0:1.0:1.6:x (x=0−0.10). Samples were prepared by mixing powders of the high-Tc phase and BaCO3 and heating at 835 to 855°C for 60h in air. The high-Tc phase was without other compounds obtained in samples with x=0.04 to 0.05 heated at 845 to 850°C for 60h. Dissolution of Ba into the high-Tc phase was confirmed by EDX analysis. Ba-addition increases the c-axis length of the high-Tc phase and Tc(R=0) up to 119K. The growth of the high-Tc phase was found to be accelerated by Ba-addition.

Original languageEnglish
Pages (from-to)1043-1047
Number of pages5
JournalJournal of the Japan Society of Powder and Powder Metallurgy
Volume38
Issue number8
DOIs
Publication statusPublished - Jan 1 1991

ASJC Scopus subject areas

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

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    Kusano, Y., Yamaguchi, K., Fukuhara, M., Doi, A., Takada, T., Fujiwara, M., & Takada, J. (1991). Effect of Ba-addition to the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (IV). Journal of the Japan Society of Powder and Powder Metallurgy, 38(8), 1043-1047. https://doi.org/10.2497/jjspm.38.1043