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Measurement of the Kinematic Viscosity of Melted Mixtures of Sodium, Lithium, and Beryllium Fluorides and the Effect of the Eutectic Additive Cerium Trifluoride on the Viscosity

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Atomic Energy Aims and scope

Experimental data on the kinematic viscosity and liquidus temperature of certain fused mixtures of sodium, lithium, and beryllium fluorides were obtained, by the method of damping of torsional oscillations of a cylinder with the experimental melt, in validation of the concept of molten-salt incinerator reactors for incinerating transuranium elements from spent nuclear fuel from light-water reactors. The measurements were conducted from the liquidus temperature to 800°C. The effect of the addition of cerium trifluoride on the viscosity of the eutectic melt 58NaF–15LiF–27BeF2 was studied. It was shown that the additive appreciably reduces the viscosity at low temperature and also lowers the liquidus temperature. The parameters characterizing the temperature dependence of viscosity were determined for the experimental melts.

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Authors and Affiliations

  1. National Research Center Kurchatov Institute, Moscow, Russia

    A. V. Merzlyakov & V. V. Ignat’ev

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  1. A. V. Merzlyakov
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  2. V. V. Ignat’ev
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Translated from Atomnaya Énergiya, Vo. 124, No. 4, 211–214, April, 2018.

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Merzlyakov, A.V., Ignat’ev, V.V. Measurement of the Kinematic Viscosity of Melted Mixtures of Sodium, Lithium, and Beryllium Fluorides and the Effect of the Eutectic Additive Cerium Trifluoride on the Viscosity. At Energy 124, 251–254 (2018). https://doi.org/10.1007/s10512-018-0406-5

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  • DOI: https://doi.org/10.1007/s10512-018-0406-5

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