Mechanical response characteristics of HMX crystals under resonant acoustic mixing

IF 1.7 4区工程技术 Q3 CHEMISTRY, APPLIED

Propellants, Explosives, Pyrotechnics Pub Date : 2024-07-02 DOI:10.1002/prep.202400095

Zi‐Chao Wang, Jie Yao, Feng‐Wei Guo, Shuang Li, Yi‐Long Xu, Jun‐Hui Liu, Chen Shen, Xue‐Yong Guo, Shi Yan, Jian‐Xin Nie

引用次数: 0

Abstract

Understanding 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.

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共振声混合作用下 HMX 晶体的机械响应特性

了解机械响应特性和确定优化工艺条件对于减轻共振声混合（RAM）过程中的晶体碰撞至关重要。因此，我们通过模拟和实验研究了不同 RAM 加速度下高熔点炸药（HMX）晶体与容器壁的碰撞。利用显微成像、小角 X 射线散射和布鲁瑙尔-埃美特-泰勒试验评估了 RAM 后 HMX 晶体的损伤情况。结果表明，使用低模量聚四氟乙烯容器可以防止在钢制容器中观察到的晶体断裂。粗糙的容器会减少内部损伤，但会增加表面磨损。较低的 RAM 加速度、较短的 RAM 持续时间和低模量容器可减轻 HMX 晶体损坏。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Propellants, Explosives, Pyrotechnics 工程技术-工程：化工

CiteScore

4.20

自引率

16.70%

发文量

235

审稿时长

2.7 months

期刊介绍： Propellants, Explosives, Pyrotechnics (PEP) is an international, peer-reviewed journal containing Full Papers, Short Communications, critical Reviews, as well as details of forthcoming meetings and book reviews concerned with the research, development and production in relation to propellants, explosives, and pyrotechnics for all applications. Being the official journal of the International Pyrotechnics Society, PEP is a vital medium and the state-of-the-art forum for the exchange of science and technology in energetic materials. PEP is published 12 times a year. PEP is devoted to advancing the science, technology and engineering elements in the storage and manipulation of chemical energy, specifically in propellants, explosives and pyrotechnics. Articles should provide scientific context, articulate impact, and be generally applicable to the energetic materials and wider scientific community. PEP is not a defense journal and does not feature the weaponization of materials and related systems or include information that would aid in the development or utilization of improvised explosive systems, e.g., synthesis routes to terrorist explosives.