Modification of the Properites of Explosive Materials by Adding Nanodispersed Energy-Intensive Metal Particles
B. P. ADUEV1, D. R. NURMUKHAMETOV1, A. A. ZVEKOV1, A. V. KALENSKY2, A. P. NIKITIN1
1Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences, Pr. Sovetskiy 18, Kemerovo 650000 (Russia)
2Kemerovo State University, Ul. Krasnaya 6, Kemerovo 650043 (Russia)
Keywords: laser, tetranitropentaerythrite, nanoparticles, light scattering, light detonator
Abstract
A review of the works of the authors during the recent five years dealing with the investigation of the threshold of explosive decomposition of compounds based on TEN and ultrafine particles of different kinds depending on the content of inclusions in experimental samples under the action of the first laser harmonic is presented. Experiments with the samples containing Al 0.1 mass % under initiation by the second laser harmonic were carried out. It was established that explosion is initiated as a result of light absorption by inclusions with heating to high temperature but not as a result of optical breakdown. Experiments with different Al/Al2O3 ratios in separate particle were carried out. They demonstrated domination of light absorption processes. Comparative characteristics of the shock sensitivity of pure TEN and the samples of TEN with different concentrations of ultrafine Al particles were studied.
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