Abstract

Abstract Interfaciai energies between solid uranium dioxide and liquid metals have been investigated for a number of systems. It was found, that at the metal melting point (1) the interfacial energies become approximately identical for all metals (γUO 2 -liquid metals ≈ 1.676 ± 0.142 J/m 2 ) with respect to an engineering approach, and (2) the respective contact angles (φ s > 90°) point out no wettability. Linear temperature functions of interfacial energies in UO 2 -liquid metal systems have been derived. By appropriate extrapolation procedures it is possible to estimate temperature coefficients of interfacial energies for not yet measured solid UO 2 -liquid metal systems.

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