Formation of the high-Tc phase in the lead-rich sample in the Bi-Pb-Sr-Ca-Cu-O system

Jun Takada, Fumine Shitani, Hitoshi Kitaguchi, Kiichi Oda, Akiyoshi Osaka, Yoshinari Miura

Research output: Contribution to journalArticle

Abstract

The formation of the high-Tc phase and the electrical resistivity have been studied for a Pb-rich sample with a nominal composition of Bi:Pb:Sr:Ca:Cu= 0.726:0.374:1.0:1.0:1.65 sintered between 840 and 853°C. The sample calcined at 800°C for 12h consists of a large amount of Ca 2PbO 4 and CuO besides the low-Tc phase. The low-Tc phase increases rapidly in an early stage of sintering and then decreases through a maximum as sintering is extended. On the other hand, the high-Tc phase increases gradually in comparison with that in the Pb-poor Bi:Pb:Sr:Ca:Cu=0.96:0.24:1.0:1.1:1.6 reported previously. The samples sintered from 845 to 853°C show Tc of about 110K, independent of sintering temperature.

Original languageEnglish
Pages (from-to)108-113
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume37
Issue number1
Publication statusPublished - Jan 1990
Externally publishedYes

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Sintering
Lead
Chemical analysis
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

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Formation of the high-Tc phase in the lead-rich sample in the Bi-Pb-Sr-Ca-Cu-O system. / Takada, Jun; Shitani, Fumine; Kitaguchi, Hitoshi; Oda, Kiichi; Osaka, Akiyoshi; Miura, Yoshinari.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 37, No. 1, 01.1990, p. 108-113.

Research output: Contribution to journalArticle

Takada, Jun ; Shitani, Fumine ; Kitaguchi, Hitoshi ; Oda, Kiichi ; Osaka, Akiyoshi ; Miura, Yoshinari. / Formation of the high-Tc phase in the lead-rich sample in the Bi-Pb-Sr-Ca-Cu-O system. In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 1990 ; Vol. 37, No. 1. pp. 108-113.
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AU - Oda, Kiichi

AU - Osaka, Akiyoshi

AU - Miura, Yoshinari

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