Journal of Materials Science

, Volume 30, Issue 20, pp 5103–5109 | Cite as

Effect of fluorination on preparation of Bi(Pb)SCCO 2 2 2 3 by the citrate precursor process

  • J. H. Greenberg
  • L. Ben-Dor
  • V. Beilin
  • D. Szafranek


Citrate precursor technology was used to prepare fluorine substituted Bi(Pb)SCCO 2 2 2 3 superconducting phase. Samples with the nominal composition of up to three F atoms per formula were synthesized. A number of experimental methods have been used to characterize the samples and to trace the phase transformations during the preparation process: DTA/TGA, XRD, EPMA (WDS and EDS), atomic absorption, potentiometry with fluoride selective electrode, resistance and inductive measurements. Fluorine was shown to enhance considerably the formation of the 2 2 2 3 phase. Thermodynamic calculations of P-T-X equilibrium in the Bi-Pb-Sr-Ca-Cu-O-F-C-H-N system were made in a wide temperature range to determine the composition of the vapours coexisting with the solid phases at different stages of the preparation process.


Polymer Citrate Fluoride Phase Transformation Atomic Absorption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • J. H. Greenberg
    • 1
  • L. Ben-Dor
    • 1
  • V. Beilin
    • 2
  • D. Szafranek
    • 3
  1. 1.Department of Inorganic and Analytical ChemistryHebrew UniversityJerusalemIsrael
  2. 2.School of Applied Science and TechnologyHebrew UniversityJerusalemIsrael
  3. 3.EPMA Lab, Institute of Earth SciencesHebrew UniversityJerusalemIsrael

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