雷管壳体材料对爆轰量热结果的影响

IF 0.7 4区工程技术 Q4 CHEMISTRY, APPLIED

Central European Journal of Energetic Materials Pub Date : 2020-12-28 DOI:10.22211/cejem/131804

O. Němec, Tomáš Musil, M. Künzel

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引用次数: 1

摘要

爆震量热法是一种测定炸药爆炸释放热量的方法。与经典的燃烧量热法相比，爆震量热法需要惰性气氛、大的样品质量和引爆剂。这种雷管释放出一些能量，必须对其结果进行校正。四种类型的雷管已经单独在量热计中进行了测试，也与PETN炸药组合进行了测试。研究发现，雷管的铝壳显著增加了PETN样品在真空中的表观爆热，而可燃（聚合物）组分的存在具有相反的效果。用氮气对量热容器加压只能部分抑制这些影响。优选的技术是在高压惰性气氛中使用铜或玻璃限制。

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The Effect of Detonator Shell Materials on Detonation Calorimetry Results

Detonation calorimetry is a method for the determination of the heat released by the detonation of an explosive charge. Compared to classical combustion calorimetry, detonation calorimetry requires an inert atmosphere, a large sample mass and a detonator for its initiation. This detonator releases some energy for which the results must be corrected. Four types of detonator have been tested in the calorimeter alone and also in combination with explosive charges of PETN. It was found that the aluminium shell of the detonator considerably increases the apparent heat of detonation of the PETN samples in a vacuum, while the presence of combustible (polymeric) components has the opposite effect. Pressurization of the calorimetric vessel with nitrogen gas only partially suppresses these effects. The preferred technique is to use copper or glass confinement in a high pressure inert atmosphere.

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来源期刊

Central European Journal of Energetic Materials CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

1.80

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： CEJEM – the newest in Europe scientific journal on energetic materials It provides a forum for scientists interested in the exchange of practical and theoretical knowledge concerning energetic materials: propellants, explosives and pyrotechnics. The journal focuses in particular on the latest results of research on various problems of energetic materials. Topics: ignition, combustion and detonation phenomenon; formulation, synthesis and processing; analysis and thermal decomposition; toxicological, environmental and safety aspects of energetic materials production, application, utilization and demilitarization; molecular orbital calculations; detonation properties and ballistics; biotechnology and hazards testing CEJEM presents original research and interesting reviews. Contributions are from experts in chemistry, physics and engineering from leading research centers in Europe, America and Asia. All submissions are independently refereed by Editorial Board members and by external referees chosen on international basis.