Formation Process of the Li-addition High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System

Taigen Ohara, Hiroyuki Ito, Jun Takada, Masashi Fujiwara, Kazuyo Endo, Toshio Egi, Tokuro Nanba, Yasunori Ikeda, Zenji Hiroi, Mikio Takano, Yoshichika Bando

Research output: Contribution to journalArticle

Abstract

Li addition was found to raise Tc up to 116K in the high-Tc phase in the Bi-Pb-Sr-CaCu-O system. But the role and behavior of Li has not yet been clarified. This study has been done for samples with starting compositions of Bi0.9Pb0.2Sr1.0Ca1.0Cu1.6LixOy with x=0.03 to 0.10 and heated at 825 to 840».C for 1 to 48h. ICP analysis showed that Li content decreased with increasing sintering time. The lattice constant a decreased at first and then gradually increased. On the other hand, the lattice constant c passed through a maximum around 4h.

Original languageEnglish
Pages (from-to)767-770
Number of pages4
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume39
Issue number9
DOIs
Publication statusPublished - 1992

ASJC Scopus subject areas

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

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