期刊
COMBUSTION EXPLOSION AND SHOCK WAVES
卷 50, 期 6, 页码 704-710出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0010508214060112
关键词
micro-hotspot model; thermal explosion; laser radiation; melting; PETN
类别
资金
- Russian Foundation for Basic Research [14-03-00534 a, 13-03-98032 p_Siberia_a]
- Ministry of Education and Science of the Russian Federation [2014/64]
In this paper, we study a micro-hotspot model for the laser initiation of explosive decomposition taking into account the melting of the matrix of the energetic material and the nanometallic inclusion contained in its volume. The heating features of the nanoparticle in an inert matrix are investigated, and the dependence of the maximum temperature on the surface of the inclusion on its radius is constructed. It is shown that melting leads to a reduction in the maximum heating temperature and a slight change in the radius of the most heated nanoparticle. The dependences of the critical initiation energy density of explosive decomposition of pentaerythritol tetranitrate (PETN) with aluminum nanoparticles on the inclusion radius with and without melting are calculated. With melting taken into account, the model gives higher critical initiation energy density of explosive decomposition. In the case of inclusions of large radius, the formation of the reaction site of explosive decomposition occurs before complete melting of the metal inclusion, which results in solidification of the melt during the induction period.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据