掺杂纳米铝粒子硼硝酸钾的激光点火性能探讨  

Laser Ignition Properties of B/KNO_(3) Doped with Aluminum Nanoparticles

作　　者：何小东[1] 赵胜超[1] 唐舵 He Xiaodong;Zhao Shengchao;Tang Duo(Institute of Chemical Materials,CAEP,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《云南化工》2024年第1期58-60,共3页Yunnan Chemical Technology

摘　　要：采用纳米铝粒子掺杂的方法进行了硼硝酸钾激光点火阈值的调制研究,结果表明,随着纳米铝含量的增多,药剂发火阈值和作用时间呈现先降低后增加的趋势,当纳米铝粒子质量分数为1.0%时,发火阈值和作用时间达到最小值(0.25 W,12 ms)。分析表明,纳米铝粒子对药剂的光吸收特性无明显影响,药剂热导率随铝含量增多而呈近线性增加。In this paper,we adjust laser ignition property of B/KNO_(3) by doping aluminum nanoparticles additives in B/KNO_(3) powder.The results indicated that the threshold and delay-time decreases first and then increases as the increasing of content of aluminum and when the content of aluminum is 1.0%,the threshold and delay-time is minimal(0.25 W,12 ms,respectively).Experiment shows that no obvious difference on laser absorption is found between pure B/KNO_(3) and B/KNO_(3) mixtures with additives.And the thermal conductivity increases linearly as the Al concentration increasing.The ignition threshold is synthetically affected by changes of thermal conductivity.

关 键 词：激光点火 发火阈值 作用时间 纳米铝掺杂的硼硝酸钾 

分 类 号：TJ430.31[兵器科学与技术—火炮、自动武器与弹药工程]