掺Ca^(++)高氯酸铵爆燃特性的研究

On the Effect of Dopant Ca^(+ +) on the Deflagration Rate of Ammonium Perchlorate

以“统一模型”为理论基础，利用高速摄影机，对掺与不掺 Ｃａ＋＋之高氨酸铵（ＡＰ）晶体在带透明窗燃速仪中的爆燃进行了观测、分析，并初步讨论了Ｃａ＋＋的掺入对ＡＰ凝相反应的作用机理．研究表明，Ｃａ＋＋的掺入使ＡＰ晶体在固体火箭发动机经常工作的压强范围内压强指数降低，并在某一压强区段（实验中为７～８．５ＭＰａ）压强指数出现负值，这为进一步完善“统一模型”提供了依据，为负压强指数推进剂的研制和进一步降低硝胺／ＡＰ复合推进剂的压强指数提供了新的途径．

On the basis of the 'United Model', the deflagration rate of Ammonium Perchlorate(AP) doped with Ca+ + in a windowed bomb is investigated in this paper. The deflagration mechanism of pure AP and the effect of dopant Ca+ + on AP condensed - phase reactions are also discussed. This paper indicates that the doping of Ca+ + can make the pressure exponant decline in the pressure preseeure of solid solid rocket, and even the negative pressure exponant appears in some pressure range(7-8.5MPa). The study of this paper can not only supply new evidence for consummating the 'UM', but also give a new method for developing the negative burning rate pressure exponant propellant.