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Theses

Amélioration des explosifs par ajustement de leur balance en oxygène lors de la cristalisation par Evaporation Flash de Spray

Abstract : In literature, for secondary explosive or composite material, an oxygen balance (OB) close to 0% is often linked to good energetic performances (detonation velocity, heat of decomposition, etc.). The main objective of this thesis is to enhance energetic performances of current secondary explosives (RDX, HMX, CL-20) by adding oxidizer (ADN) to obtain a composite material with an OB of -1%. The spray flash evaporation process, usually used for particle size reduction of explosives, enables to obtain an intimate mixture of these two compounds. Composite materials were successfully crystallized in three cases, resulting of submicrometric explosives and nanostructured ADN particles. These results were obtained thanks to a preliminary study for better process understanding and the optimization of experimental conditions. Reactivity studies show some desensitization, shorter distance from deflagration to detonation, and/or higher detonation velocity, compared to corresponding explosives.
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Submitted on : Tuesday, February 26, 2019 - 11:43:07 AM
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Jean-Edouard Berthe. Amélioration des explosifs par ajustement de leur balance en oxygène lors de la cristalisation par Evaporation Flash de Spray. Autre. Université de Strasbourg, 2018. Français. ⟨NNT : 2018STRAE023⟩. ⟨tel-02049275⟩

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