Effect of ultrafine Al-C particle additives on the PETN sensitivity to radiation exposure |
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Authors: | B. P. Aduev D. R. Nurmukhametov V. P. Tsipilev R. I. Furega |
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Affiliation: | 12012. Institute of Coal Chemistry and Materials Science, Siberian Branch, Russian Academy of Sciences, Kemerovo, 650000, Russia 22012. Tomsk Polytechnic University, Tomsk, 634050, Russia
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Abstract: | The thresholds of explosive decomposition of PETN (pentaerythrite tetranitrate) with the addition of ultrafine Al-C mechanocomposite particles were measured as a function of the concentration of the latter in the experimental samples exposed to laser pulses (1.064 nm, 12 ns). The sample density was 1.73 g/cm3, and the Al-C particle size at the distribution peak was 220 nm. The minimum threshold of explosive transformation corresponding to a 50% probability of explosion with an energy density of 4 J/cm2 was reached at an optimum concentration of the mechanocomposite of 0.1–0.3%. Comparison with experimental data obtained for samples with aluminum nanoparticle additives was performed. |
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