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Thermal Expansion of Scheelite-Like Molybdate Powders and Ceramics

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Inorganic Materials Aims and scope

Abstract—

NaxSr1 – 2xNdxMoO4 (x = 0–0.5, Δx = 0.1) solid solutions with the scheelite structure have been synthesized for the first time and their crystallographic parameters have been determined as functions of composition and temperature. Their thermal expansion coefficients have been determined in the temperature range 25–1000°C: αa = (12.9–14.9) × 10–6 °C–1 and αc = (24.9–25.9) × 10–6 °C–1. Using spark plasma sintering at tmax ≈ 872–985°C and τ ≈ 650–750 s, we have prepared ceramics with relative densities in the range 97–99%.

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Authors and Affiliations

  1. Lobachevsky State University, pr. Gagarina 23, 603950, Nizhny Novgorod, Russia

    M. G. Tokarev, E. A. Potanina, A. I. Orlova, M. S. Boldin, E. A. Lantsev, N. V. Sakharov, A. A. Murashov, A. V. Nokhrin & V. N. Chuvil’deev

  2. University of Oviedo, Calle San Francisco 1, 33003, Oviedo, Spain

    S. A. Khainakov & S. Garcia-Granda

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  1. M. G. Tokarev
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Tokarev, M.G., Potanina, E.A., Orlova, A.I. et al. Thermal Expansion of Scheelite-Like Molybdate Powders and Ceramics. Inorg Mater 55, 730–736 (2019). https://doi.org/10.1134/S0020168519070203

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  • DOI: https://doi.org/10.1134/S0020168519070203

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