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Effect of Content of AP and Al on the Deflagration to Detonation Transition of DNTF-based Explosives
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(Xi′an Modern Chemistry Research Institute, Xi′an 710065, China)

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    Abstract:

    To study the effects of ingredients in formulation on the performance of deflagration to detonation transition(DDT) for dinitrofurazanfuroxan(DNTF) based explosives, three kinds of formulations that the molar ratio of AP and Al powders is 0.306, 0.414 and 0.574, were designed. The performance test of DDT for three kinds of DNTF-based composite explosive formulations was carried out by the coaxial ionization probe test technology. The influence of molar ratio of AP and Al powders on the deflagration to detonation transition of explosive was analyzed by change of wave front velocity and inducement detonation distance. Results show that with increasing the molar ratio of AP and Al from 0.306 to 0.574, the initial burn duration time increases from 1065 μs to 1395 μs, and the burning rate decreases from 141 m·s-1 to 108 m·s-1, but the duration time of convection combustion section and deflagration section decreases rapidly, and the convection burning rate increases from 500 m·s-1 to 1668 m·s-1, and deflagration velocity increases from 3000 m·s-1 to 4800 m·s-1, the inducing detonation distance occurring DDT decreases from about 675 mm to 425 mm.

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冯晓军,杨建刚,徐洪涛,等. AP和Al含量对DNTF基炸药燃烧转爆轰的影响[J].含能材料,2016,24(8):752-756.
FENG Xiao-jun, YANG Jian-gang, XU Hong-tao, et al. Effect of Content of AP and Al on the Deflagration to Detonation Transition of DNTF-based Explosives[J]. Chinese Journal of Energetic Materials,2016,24(8):752-756.

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History
  • Received:November 19,2015
  • Revised:March 06,2016
  • Adopted:March 16,2016
  • Online: August 08,2016
  • Published: September 01,2016