Abstract
Unmodified lead ferroniobate (PFN) and samples modified with 1 wt % Li2CO3 (PFNL) and 1 wt % MnO2 (PFNM) have been prepared by solid-state reactions followed by sintering by a conventional ceramic processing technique. The modifiers have been shown to change the nature of the recrystallization sintering process, reduce the optimal sintering temperature of the material, increase its average grain size, stabilize its dielectric properties, and improve its piezoelectric performance. The observed effects are interpreted in terms of the crystal-chemical specifics of the modifiers and their location in the structure of the parent compound.
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Original Russian Text © A.V. Pavlenko, N.A. Boldyrev, L.A. Reznichenko, I.A. Verbenko, G.M. Konstantinov, L.A. Shilkina, 2014, published in Neorganicheskie Materialy, 2014, Vol. 50, No. 7, pp. 806–812.
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Pavlenko, A.V., Boldyrev, N.A., Reznichenko, L.A. et al. Microstructure and dielectric and piezoelectric properties of PbFe0.5Nb0.5O3 ceramics modified with Li2CO3 and MnO2 . Inorg Mater 50, 750–756 (2014). https://doi.org/10.1134/S0020168514070115
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DOI: https://doi.org/10.1134/S0020168514070115