Journal of thermal analysis

, Volume 50, Issue 1–2, pp 105–115 | Cite as

Sol-gel preparation and fluorine substitution of BiSCCO high-T c superconductors

  • J. H. Greenberg
  • L. Ben-Dor
  • H. Selig


Sol-gel citrate technology was used to prepare BiSCCO 2223 and 2212 superconducting phases. Fluorine in the initial mixture was shown to enhance considerably formation of the 2223 phase. Fluorine substitution of up to three F atoms per Bi(Pb)SCCO 2223 formula was achieved by treatment of the sample in 80 Torr ClF3 atmosphere. A number of experimental methods have been used to characterize the samples and to trace the phase transformations in the sol-gel process: DTA/TG, XRD, atomic absorption, potentiometry with fluoride selective electrode, magnetic susceptibility measurements.


BiSCCO synthesis fluorine substitution sol-gel 


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Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1997

Authors and Affiliations

  • J. H. Greenberg
    • 1
  • L. Ben-Dor
    • 1
  • H. Selig
    • 1
  1. 1.Department of Inorganic and Analytical ChemistryHebrew UniversityJerusalemIsrael

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