Formation of High‐Tc Superconducting Bi‐Pb‐Sr‐Ca‐Cu Oxide Films by Spray Pyrolysis of an Oxalate Suspension

Fueng‐Ho ‐H Chen*, Tseung-Yuen Tseng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A Bi‐Pb‐Sr‐Ca‐Cu oxide superconducting thick film, exhibiting Tc(onset)= 120 K and Tc(zero)= 100 K, can be obtained by spray pyrolysis of oxalate suspension on the (100) MgO substrate, using the partial‐melting state at 860°C for 15 h, a rapid‐quenching process to 500°C, and a postannealing treatment for 1 h at 835°C. These processes are believed to enhance the volume fraction of 2223 phase and increase the Tc(zero). The films show preferred orientation and adhere well to the substrate.

Original languageEnglish
Pages (from-to)889-892
Number of pages4
JournalJournal of the American Ceramic Society
Volume73
Issue number4
DOIs
StatePublished - 1 Jan 1990

Keywords

  • films
  • formation
  • oxalates
  • pyrolysis
  • superconductors

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