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Interaction of lithium-titanium ceramics with air during sintering

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Abstract

Interaction of lithium-titanium polycrystalline ferrites with ambient air during their sintering is investigated using the methods of electroconductivity and thermal gravimetry within the temperature interval T = 600–1300 K. It is found out that the temperatures exceeding T = 1100 K correspond to effective course of reducing reactions in this material, which results in the formation of an oxygen-deficient ceramic structure in the stage of isothermal tempering (T = 1280 K). It is shown that in the final cooling stage the process of exchange of the ferrite ceramics with the ambient atmosphere exhibits a pronounced oxidative character. The role of these redox processes in the formation of the oxygen non-stoichiometry of the sintered specimen and the depth of its distribution are analyzed.

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Authors and Affiliations

  1. Tomsk Polytechnic University, Russia

    S. A. Ghyngazov, E. N. Lisenko, M. S. Petyukevich & T. S. Frangulyan

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  1. S. A. Ghyngazov
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  2. E. N. Lisenko
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  3. M. S. Petyukevich
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  4. T. S. Frangulyan
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 35–40, February, 2007.

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Ghyngazov, S.A., Lisenko, E.N., Petyukevich, M.S. et al. Interaction of lithium-titanium ceramics with air during sintering. Russ Phys J 50, 134–139 (2007). https://doi.org/10.1007/s11182-007-0018-3

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  • DOI: https://doi.org/10.1007/s11182-007-0018-3

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