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含能材料  2003 

HMX中晶体缺陷的获得及其对热感度和热安定性的影响

Keywords: 物理化学,HMX,结晶缺陷,感度,热安定性

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Abstract:

为了研究晶体缺陷对炸药性能的影响,采取急速重结晶手段,获得了缺陷类型和数目不同的HMX重结晶样品。利用SEM观察了样品的缺陷情况,并研究了晶体缺陷对炸药感度和热安定性的影响。HMX经过重结晶后,其5s延滞期爆发点降低了51℃~54℃,其热分解起始温度及相应的表观活化能明显降低,表明晶体缺陷使HMX的热感度增加,热安定性降低。

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