【摘要】 从理论、实验、数值计算等几个方面分析了激光对含能材料的热作用机理与特性 ,研究了含能材料激光点火的临界值与激光功率密度、环境温度等因素间的关系 ,并与激光对含能材料的光化学作用及光化学点火机理做了比较。与热点火相比 ,光化学点火对激光波长有较强的选择性 ,光化学点火的临界功率与临界能量较小更多还原

【Abstract】 The thermal effect mechanism and characteristics of laser upon energetic materials were analyzed based on theory, experimental and numerical calculations. The relationships between the critical value of laser ignition and laser power density, and ambient temperature were investigated. The comparison between thermal effect and photochemical effect of laser has been made. Compared with thermal ignition, the photochemical ignition has higher selectivity on the wavelength of laser. And the critical power and critical energy are relatively low.更多还原