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HMX中晶体缺陷的获得及其对热感度和热安定性的影响
The Preparation of HMX Crystals with Defects and the Influences of Crystal Defects on Thermal Sensitivity and Stability
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中文摘要:
      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。
中文关键词: 物理化学  HMX  结晶缺陷  感度  热安定性
英文摘要:
      HMX crystals with defects of different types and populations were prepared by fast recrystallization. These obtained crystals were used to study the influences of crystal defects on thermal sensitivity and stability of HMX by explosion point measurement and thermal analysis. The morphology and defects of HMX crystals were observed by TEM technique. Experimental results show that the explosion point(5 s)of HMX decreases by 51~54 ℃,and its thermal decomposition initial temperature and apparent activation energies also decline remarkably due to the existing defects in the crystals. It could be concluded that the crystal defects would deteriorate both the sensitivity to heat and the thermal stability of HMX.
英文关键词: physical chemistry  HMX  crystal defect  sensitivity  thermal stability
投稿日期:2002-09-23
网络出版日期:2011-11-02
基金项目:中国工程物理研究院科学基金资助项目(2000Z0301)
引用文献:黄亨建,董海山,舒远杰,等.HMX中晶体缺陷的获得及其对热感度和热安定性的影响[J].含能材料,2003,11(3):123~126.HUANG Heng-jian,DONG Hai-shan,SHU Yuan-jie,et al. The Preparation of HMX Crystals with Defects and the Influences of Crystal Defects on Thermal Sensitivity and Stability[J]. Chinese Journal of Energetic Materials(Hanneng Cailiao),2003,11(3):123-126.
作者单位
黄亨建 中国工程物理研究院化工材料研究所 四川 绵阳 621900 
董海山 中国工程物理研究院化工材料研究所 四川 绵阳 621900 
舒远杰 中国工程物理研究院化工材料研究所 四川 绵阳 621900 
郝莹 中国工程物理研究院化工材料研究所 四川 绵阳 621900 
王晓川 中国工程物理研究院化工材料研究所 四川 绵阳 621900 
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