以RDX为基的含铝炸药中铝粉粒度和氧化剂形态对加速金属能力的影响

The influence of aluminum particle size and oxidizer morphology in RDX-based aluminized explosives on their ability to accelerate metals

利用激光速度干涉仪研究了含微米铝粉和纳米铝粉复合炸药加速金属平板的能力,结果表明纳米铝粉的引入能够获得更大的金属平板自由面速度,其反应时间比微米复合含铝炸药缩短35.1%。研究了氧化剂的形态对含铝炸药性能的影响,用物理化学手段获得的RDX/AP复合粒子复合粒子制作的含铝炸药加速金属平板的能力优于机械混合RDX/AP的含铝炸药,前者的反应时间也比后者短。此外,还研究了以富氧炸药取代RDX获得的含铝炸药的性能,结果表明其加速金属平板的速度比RDX/Al复合炸药提高10%。

The ability to accelerate metal plates of aluminized explosives containing micrometer and nanometer aluminum powder has been investigated experimentally with a VISAR interferometer. In the case of nanometer aluminum powder, the free surface velocity of metal plates was larger and the reaction time was decreased by 35. 1% compared with that in the case of normal aluminized explosives. The influence of morphology of oxidizer AP on aluminized explosive performances was explored. The ability of the aluminized explosive made from RDX/Al composite with physical-chemical method was larger and its detonation reaction time was shorter than that made with mechanical mixing. When RDX in the aluminized explosive was replaced by an oxygen-enriched explosive, a 10% higher metal plate velocity resulted.