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Etude de la nanostructuration de matériaux énergétiques multi-composants pour application aux poudres propulsives à sensibilités réduites

Abstract : The PhD thesis presented in this manuscript focused on the elaboration and characterization of propellants with reduced sensitivities. This was accomplished by the use of relatively insensitive energetic materials, in conjunction with the application of the Spray Flash Evaporation (SFE) process. The latter made it possible to obtain nanostructured propellants of ternary composition.The characterization of these propellants by Raman spectroscopy revealed the mechanisms ruling the plasticization of nitrocellulose by the plasticizers used. Scanning electron microscopy analyzes were conducted to determine the particle size of these samples. Their characterization by X-ray diffraction allowed to study their structure and their crystallization. These propellants were shown to be particularly insensitive through analyses by differential scanning calorimetry,pyrotechnic tests in tubes and manometric vessels as well as sensitivity measurements to various types of solicitations.
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Axel Le Brize. Etude de la nanostructuration de matériaux énergétiques multi-composants pour application aux poudres propulsives à sensibilités réduites. Matériaux. Université de Strasbourg, 2017. Français. ⟨NNT : 2017STRAE020⟩. ⟨tel-01725088⟩

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