纳米Al-MoO3发火性能研究

Ignition Performance of Nano Al-MoO_3

为研制高能量密度无铅的火工药剂,以纳米铝粉和纳米氧化钼为原料,采用超声分散混合的方法,制备了绿色环保的纳米含能材料Al-MoO3。通过冷场扫描电镜和差热分析(DSC)对纳米含能材料Al-MoO3进行了表征分析,制作了电点火头和激光点火头,进行了点火性能测试。结果表明:纳米含能材料Al-MoO3在520℃以上的高温条件下反应,放出大量的热,其中电点火头的50%的电压发火感度为22.8V,激光点火头的50%的发火感度为5.1mJ。

The nano-energetic materials Al-MoO3 was prepared by immersing the powders in a solvent and then mixing the two powders including nano-Al and MoO3 with an ultrasonic mixer.The performance of nano-energetic materials Al-MoO3 was analyzed by means of Scanning Electron Microscopy（SEM） and Differential Scanning Calorimetry（DSC）.The electrical match and laser match were prepared,and their ignition sensitivities were tested.Results shows that nano-energetic materials Al-MoO3 react at high temperature（above 520 ℃） and gives out lots of heat.Voltage ignition sensitivity of electrical match and laser ignition sensitivity of laser match,with 50% sensitivity is 22.8 V and 5.1 mJ respectively.