火炸药学报2017，Vol.40Issue(1)：21-24,4.DOI:10.14077/j.issn.1007-7812.2017.01.004
湿法研磨制备改性HMX及其机械感度研究
Modification of HMX Particles by Wet Milling and Study on Its Mechanical Sensitivities
摘要
Abstract
The modified HMX crystals with different sizes were obtained by wet milling modification.Their morphologies were characterized by a refractive index matching method and the mechanical sensitivities were measured.The effect of milling speed on the particle diameter of HMX was discussed.The mechanical sensitivities of HMX before and after modification were analyzed and the effect of wet milling on mechanical sensitivities of HMX was also analyzed.The results show that when the milling speed is 0.524m/s, the particles size of HMX is the smallest of 43.1μm, the friction sensitivity of modified HMX decreases by 60%, and impact sensitivity decreases by 68%.And the smaller the size of milled crystal, the higher the characteristic drop height.The influencing mechanism of the particle sizes and internal defects on the mechanical sensitivities is mainly that crystal size decreases and internal defects reduce after milling, the probability of generation and propagation of hot spots in the crystal is decreased when subjected to external forces.关键词
湿法研磨/晶体粒度/内部缺陷/机械感度Key words
wet milling/crystal sizes/internal defects/mechanical sensitivities分类
军事科技引用本文复制引用
肖春,祝青,谢虓,郑保辉,李尚斌..湿法研磨制备改性HMX及其机械感度研究[J].火炸药学报,2017,40(1):21-24,4.基金项目
中国工程物理研究院化工材料研究所科技创新基金(KJCX2014-01) （KJCX2014-01）
中国工程物理研究院院长基金(Y2015010) （Y2015010）
