Abstract
Aerosols dispersed from the oxidation of various uranium alloys exposed to air and direct flame impingement from combustible substrates are characterized. An apparatus was designed to incorporate desired characteristics of previous experiments on uranium to sample aerosol on a kilogram scale in a laboratory environment. Previous studies involving β-phase stabilized uranium (99.25 wt% U:0.75 wt% Ti) were benchmarked using an identical alloy with identical characteristics of the original specimens. Other studies involving a-phase uranium (100 wt% U) were also benchmarked in this experiment. Unique to this study is the use of γ-phase stabilized uranium (94 wt% U:6 wt% Nb). These three alloys represent the crystallographic range of typical uranium metals, providing a complete spectrum of potential uranium aerosolization. Oxidation rates and extents observed in these experiments were directly comparable to existing data and provided correlation between previous studies. These experiments indicate a distinct or...
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