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Solid-state reactions in the system Li2CO3-Na2CO3-Nb2O5-Ta2O5

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Abstract

The formation mechanisms of Li x Na1 −x Ta y Nb1 − y O3 perovskite solid solutions in the Li2CO3-Na2CO3-Nb2O5-Ta2O5 system have been studied by x-ray diffraction, differential thermal analysis, thermogravimetry, IR spectroscopy, and mass spectrometry at temperatures from 300 to 1100°C. The results indicate that the synthesis of Li x Na1 − x Ta y Nb1 − y O3 solid solutions involves a complex sequence of consecutive and parallel solid-state reactions. An optimized synthesis procedure for Li x Na1 − x Ta y Nb1 − y O3 solid solutions is proposed.

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Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, Apatity, Murmansk oblast, 184209, Russia

    M. N. Palatnikov, N. V. Sidorov & V. T. Kalinnikov

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  1. M. N. Palatnikov
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  2. N. V. Sidorov
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  3. V. T. Kalinnikov
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Correspondence to M. N. Palatnikov.

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Original Russian Text © M.N. Palatnikov, N.V. Sidorov, V.T. Kalinnikov, 2008, published in Neorganicheskie Materialy, 2008, Vol. 44, No. 7, pp. 853–859.

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Palatnikov, M.N., Sidorov, N.V. & Kalinnikov, V.T. Solid-state reactions in the system Li2CO3-Na2CO3-Nb2O5-Ta2O5 . Inorg Mater 44, 750–755 (2008). https://doi.org/10.1134/S0020168508070133

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  • DOI: https://doi.org/10.1134/S0020168508070133

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