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

Masashi Fujiwara, Tokuro Nanba, Jun Takada, Zenji Hiroi, Yasunori Ikeda, Mikio Takano

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The effects of Ba-addition to the high-Tc phase in the Bi-Pb-Sr-Ca-Cu system have been studied for the samples with a starting composition of Bi:Pb:Sr:Ba:Ca:Cu=0.9:0.2:1.0:x:1.0:1.6 heated at 850°C in air (x=0 to 0.10). Various amounts of BaCO3 were added to the high-Tc phase with a composition of Bi:Pb:Sr:Ca:Cu=0.9:0.2:1.0:1.6. Ba-addition raises Tc; Tc(R-0)=122K and Tc(R=0)=120K for the sample with x=0.05 heated at 850°C for 60h. XRD and ICP analyses indicate that the high-Tc phase contains Ba of x≤0.05 as a solid solution.

Original languageEnglish
Pages (from-to)1039-1042
Number of pages4
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Issue number8
Publication statusPublished - Nov 1991


ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

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