研究目的
Investigating the laser induced explosive decomposition thresholds of PETN–aluminum composites depending on the concentration of inclusions at various sample densities.
研究成果
1. The critical initiation energy of thin samples of PETN–metal composites decreases as the sample density increases. 2. For samples with a density of 1.7 g/cm3, the contact area of the Al nanoparticle inclusions with the PETN matrix is maximal, ensuring the smallest critical energy density under the experimental conditions. 3. As the sample density decreases, their porosity increases, complicating heat transfer between the particle and PETN, leading to an increase in both the critical energy and the optimal inclusion concentration.
研究不足
The study is limited by the capabilities of the sample manufacturing technique, which bounds the density ranges from 1.1 to 1.7 g/cm3. Additionally, the specific features of explosive decomposition in thin samples may differ from those in conditions providing normal detonation.
