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The availability of models that predict the thermal stability and spontaneous ignition of metal powders is of great importance to the nuclear industry and powder handling systems in general. The present paper describes the application of a previously published two-dimensional axisymmetric model to the ignition characteristics of zirconium (Zr), tantalum (Ta) and Zr/Ta deposits on a hot surface. Their...
Within the scope of risk assessment in the nuclear industries, the influence of alumina insertion on the self-ignition behavior of zirconium powder layers has been studied. A model, based on a set of partial differential equation describing the distribution of temperature and species concentrations and their evolution with time has been developed. Numerous experiments, both in static and dynamic modes,...
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