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首页> 外文期刊>Propellants, Explosives, Pyrotechnics >Effect of Titanium and Zirconium Hydrides on the Parameters of Confined Explosions of RDX-Based Explosives - A Comparison to Aluminium
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Effect of Titanium and Zirconium Hydrides on the Parameters of Confined Explosions of RDX-Based Explosives - A Comparison to Aluminium

机译:钛和锆氢化物对基于RDX的爆炸物狭窄爆炸的影响 - 与铝的比较

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摘要

Overpressure and temperature histories of explosions of RDX-based non-ideal explosives containing 15, 30 and 45% of Al, (Al/ZrH2), TiH2 and ZrH2 were measured in a closed chamber filled with argon and air. The solid post-explosion products were analysed to determine their elemental and phase composition and characterise their morphology. The experimental explosion parameters were compared with those obtained from thermochemical calculations. The results obtained indicate that all the additives react both with the RDX detonation products (anaerobic reactions) and with ambient atmospheric oxygen (aerobic reactions). Explosions of 50-g charges of the tested compositions in the chamber filled with air produces enough heat to increase the temperature of the explosion products to 2500-3000 K and maintain it above 2000 K for 300 ms, at least. Consequently melted droplets of the metals burn in gaseous RDX detonation products and next in the atmospheric oxygen forming spheroidal particles of zirconium and titanium oxides. In the inert atmosphere explosions, the temperatures higher than 2000 K last approx. 20 ms, and are reached only when aluminized explosives are detonated. Regardless the atmosphere in the chamber, the highest QSP and temperature values were determined for explosives containing Al powder, and the lowest ones for those with titanium hydride.
机译:在填充有氩气和空气的封闭室中测量含有15,30和45%Al,(Al / ZRH2),TiH2和ZRH2的RDX的非理想炸药爆炸的过压和温度历史。分析固体爆炸后产物以确定其元素和相组成,并表征它们的形态。将实验爆炸参数与从热化学计算中获得的那些进行比较。得到的结果表明所有添加剂与RDX爆轰产物(厌氧反应)和环境大气氧(有氧反应)反应。填充有空气的腔室中测试组合物的50g电荷的爆炸产生足够的热量以增加爆炸产物的温度至2500-3000K,并至少将其维持在2000 k以上300 ms,至少为300毫秒。因此,金属熔化液滴在气态RDX爆炸产物中燃烧,并在锆和氧化钛的大气氧形成球状颗粒中。在惰性气氛爆炸中,高于2000 k的温度最近。 20毫秒,只有在铝化炸药被引爆时才达到。无论腔室中的大气如何,测定含有Al粉末的爆炸物的最高QSP和温度值,以及用于氢化钛的炸药的炸药。

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