Affiliation:
1. State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology No 5 Zhongguancun South Street, Haidian District Beijing PR China
2. China North Industries Group Corporation Limited China Safety Technology Research Academy of Ordnance Industry Beijing PR China
Abstract
AbstractUnderstanding the mechanical response characteristics and determining the optimized process conditions is critical to mitigate crystal impacts during resonant acoustic mixing (RAM). Therefore, high‐melting explosive (HMX) crystal collisions with container walls under different RAM accelerations were investigated through simulations and experiments. The HMX crystal damages after RAM were assessed using microscopic imaging, small‐angle X‐ray scattering, and Brunauer–Emmett–Teller tests. Results show that crystal fractures observed in steel containers can be prevented by using low‐modulus polytetrafluoroethylene containers. Rough containers reduce internal damage but increase surface abrasion. Lower RAM accelerations, shorter RAM durations, and low‐modulus containers can mitigate HMX crystal damage.
Funder
National Natural Science Foundation of China