(U) Influence of Initial Density on the Shock Densification Response of CeO2

The effect of initial density on the shock densification of CeO2 powder is investigated. Specifically, the compaction response of CeO2 at initial porous densities of 4.0 and 2.3 g/cm3, corresponding to 55 and 33 percent of the theoretical crystal density are examined. The compression data is then correlated to an equation of state and strength-based P-alpha compaction model to determine the applicability of the model to porous CeO2.