Molecular dynamic calculation of solidification kinetic coefficient of metallic γ metallic uranium

Abstract

In this study, free solidification simulation (FSS) and interface fluctuation simulation (FS), which were both based on molecular dynamic (MD) methods, were employed to calculate the solidification kinetic coefficients of γ metallic uranium. The calculation results of FSS were μ 100 = 31.94 cm/s/K, μ 110 = 35.61 cm/s/K, and μ 111 = 28.42 cm/s/K; while the results of FS were µ 100 = 39.99 cm/s/K, µ 110 = 33.78 cm/s/K, and µ 111 = 36.80 cm/s/K, indicating that FSS and FS have similar performance.