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Rare-earth silicates

Communication 1. Phase diagram of the system La2O3-SiO2

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    A study of the binary system La2O3-SiO2 made it possible to construct the phase diagram.

  2. 2.

    The compositions and temperatures of the invariant points were determined.

  3. 3.

    The compound 2La2O3·3SiO2, which is lanthanum orthosilicate, La4O(SiO4 3, was synthesized and investigated.

  4. 4.

    The boundaries of the layer-formation region, its upper critical point, and the coexistence temperature of the crystalline phase (SiO2) and the two liquids (glasses) were established.

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Literature cited

  1. R. C. Vickery, Chemistry of the Lanthanons(Butterworth'sScientific Publications, London, 1953).

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  2. I. P. Kislyakov, Metallurgy of Rare Metals (in Russian] (Metallurgy Press, Moscow, 1957).

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  3. Rare Earth Metals [Russian translation] (IL, Moscow, 1957), edited by L. M. Komissarova and V. E. Plyushchev.

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  4. J. E. Campbell, High-temperature Technology (New York, 1956).

  5. K. M. Smith and L. P. Doningnes, J. Amer. Ceram. Soc.37, 4 (1958).

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  6. N. A. Toropov, F. Ya. Galakhov, and I. A. Bondar', Ivzest. Akad. Nauk SSSR, Otdel. Khim. Nauk 641 (1956).

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Authors and Affiliations

  1. Institute of Silicate Chemistry, Academy of Sciences, USSR

    N. A. Toropov & I. A. Bondar'

Authors
  1. N. A. Toropov
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  2. I. A. Bondar'
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Toropov, N.A., Bondar', I.A. Rare-earth silicates. Russ Chem Bull 9, 145–148 (1960). https://doi.org/10.1007/BF00942881

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  • DOI: https://doi.org/10.1007/BF00942881

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