CAJ | 학술논문

在入射激波作用下,利用瞬态光谱测试系统研究了纳米铝对硝基甲烷快速反应的影响,对快速反应过程中产生的NO_2、CO、CO_2、CH_2O、H_2O、AlO等主要产物的出现时间和辐射强度进行了测量.研究发现:添加纳米铝(1 g)后,硝基甲烷(1 mL)点火延迟时间提前了60%;其它产物的出现时间缩短了46%～60%,辐射强度增强了30%～100%;激波速度和反应温度分别提高了1.4和2.2倍.结果表明纳米铝明显加快了硝基甲烷快速反应过程,并使其爆炸效率大大提高.由实验观察到的结果,结合热力学和动力学方面的分析,对纳米铝催化硝基甲烷快速反应的机理进行了探索性的分析.此研究将有助于深入了解新型燃料空气炸药(FAE)反应的微观机理.
재입사격파작용하,이용순태광보측시계통연구료납미려대초기갑완쾌속반응적영향,대쾌속반응과정중산생적NO_2、CO、CO_2、CH_2O、H_2O、AlO등주요산물적출현시간화복사강도진행료측량.연구발현:첨가납미려(1 g)후,초기갑완(1 mL)점화연지시간제전료60%;기타산물적출현시간축단료46%～60%,복사강도증강료30%～100%;격파속도화반응온도분별제고료1.4화2.2배.결과표명납미려명현가쾌료초기갑완쾌속반응과정,병사기폭작효솔대대제고.유실험관찰도적결과,결합열역학화동역학방면적분석,대납미려최화초기갑완쾌속반응적궤리진행료탐색성적분석.차연구장유조우심입료해신형연료공기작약(FAE)반응적미관궤리.
Fast reactions between nitromethane and aluminum nanoparticles have been studied in incident shock waves. The emergence time and emission spectra intensity of partial products, such as NO_2、CO、CO_2、CH_2O、H_2O and AlO were observed by transient spectral methods. In comparison to species produced by pure nitromethane, emergence time for species produced by nitromethane (1ml) after addition of nano-aluminum (1g) decrease by 46～60% and the emission intensity increase by 30～100%, the shockwave diffusion velocity and reaction temperature increase by 1.4 times and 2.2 times, respectively. The results demonstrate that nano-aluminum have positive effect on accelerating the decomposition rate of nitromethane and that the explosion efficiency of nitromethane was greatly improved. Based on the experimental results, combined with thermodynamic and kinetic analysis, the exploratory studies on fast reaction of nitromethane calytized by nano-nanoparticles were discussed. The investigation may provide insights into the process occurring in actual systems involving fuel air explosives (FAE).