Effect of Bi/Pb ratio and annealing temperature on Tc and formation of high-Tc phase in Bi-Pb-Sr-Ca-Cu-O superconductor

Xi Zhengping, Ji Chunlin, Zhou Lian

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6 Scopus citations

Abstract

We studied the effect of Bi/Pb ratio and annealing temperature on Tc and formation of the high-Tc; phase in Bi-Pb-Sr-Ca-Cu-O superconductor by the three-step reaction process. The optimum Bi/Pb ratio is about 1.8:0.3 and the optimum annealing temperature is about 845-855°C. It is found that a variate high-Tc phase existed at the higher annealing temperature. The zero-resistance temperature of the variate high-Tc phase decreased when the annealing temperature increased, although the phase is isostructural with the 110 K phase.

Original languageEnglish
Pages (from-to)421-423
Number of pages3
JournalJournal of Superconductivity
Volume3
Issue number4
DOIs
StatePublished - Dec 1990
Externally publishedYes

Keywords

  • Bi/Pb Ratio
  • BiPbSrCaCuO
  • T

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