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The phase diagram of the system bismuth oxide-ferric oxide

  • Organic and Biological Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    The system Bi2O3-Fe2O3 was studied by the method of differential thermal analysis and we have given the phase diagram of the system.

  2. 2.

    The curve of the liquidus system consists of six crystallization branches: Fe2O3, Bi2Fe4O9, α- and β-BiFeO3, a compound of the assumed composition 20Bi2O3·Fe2O3, and Bi2O3.

  3. 3.

    BiFeO3 has a reversible transformation at 825°; this ferrite melts incongruently at 930°.

  4. 4.

    Bi2Fe4O9 also melts incongruently at 960°.

  5. 5.

    At 785° there crystallizes a eutectic mixture of the low temperature form of BiFeO3 and the compound of supposed composition Bi40Fe2O63.

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Authors and Affiliations

  1. N. S. Kurnakov Institute for General and Inorganic Chemistry, Academy of Sciences, USSR

    E. I. Speranskaya, V. M. Skorikov, E. Ya. Rode & V. A. Terekhova

Authors
  1. E. I. Speranskaya
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  2. V. M. Skorikov
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  3. E. Ya. Rode
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  4. V. A. Terekhova
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 905–906, May, 1965 Original article submitted July 22, 1964

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Speranskaya, E.I., Skorikov, V.M., Rode, E.Y. et al. The phase diagram of the system bismuth oxide-ferric oxide. Russ Chem Bull 14, 873–874 (1965). https://doi.org/10.1007/BF00845708

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  • DOI: https://doi.org/10.1007/BF00845708

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