Multiphase Combustion of Metalized Nanocomposite Energetic Materials.

摘要

This project examines multiphase ignition and combustion of aluminum fuel particles and focuses on (1) characterization of energy transport and Al oxidation in a variety of initiation scenarios; (2) diagnostic development to quantify thermal and electrical properties of reactants and reactions; (3) theoretical development of mechanisms promoting Al reactivity; and, (4) design and synthesis of Al particles and composite mixtures (and thin films) tailored toward improved reactivity according to theoretical strategies. Results focus on energetic thin film synthesis, electrostatic discharge ignition sensitivity coupled with new measurements of electrical properties, new diagnostics for 2D thermal mapping of reactions, new results for resolving exothermic surface chemistry between the alumina passivation shell surrounding Al particles and halogenated oxide species, and new results targeting further development of mechanisms promoting Al reactivity.