Abstract The explosive thresholds Hcr of the composites cyclotrimethylenetrinitramine (RDX)-Al and pentaerythritol tetranitrate (PETN)-Al under the action of neodymium laser (wavelength 532 nm, pulse duration 14 ns) were experimentally determined for the first time as a function of the aluminum content. The experiments were performed using aluminum nanopowder with average diameter 100 nm. The gas-dynamic energy losses were prevented. The minimal thresholds achieved in the experimental conditions were determined that are H c r = 1 J/cm2 for the composites RDX-Al at the mass fraction of Al 0.2% and H c r = 0.33 J/cm2 for PETN-Al composites at aluminum mass fraction 0.1%.

中文翻译：

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RDX-Al和PETN-Al复合材料爆炸的激光脉冲引发

摘要 首次实验确定了复合材料环三亚甲基三硝胺 (RDX)-Al 和季戊四醇四硝酸酯 (PETN)-Al 在钕激光（波长 532 nm，脉冲持续时间 14 ns）作用下的爆炸阈值 Hcr 作为铝含量。使用平均直径为 100 nm 的铝纳米粉末进行实验。防止了气体动力能量损失。在实验条件下达到的最小阈值被确定为 H cr = 1 J/cm2 对于复合材料 RDX-Al 的质量分数为 0.2% 和 H cr = 0.33 J/cm2 对于铝质量分数的 PETN-Al 复合材料0.1%。