Effects of additives on ε-HNIW crystal morphology and impact sensitivity

Huaxiong Chen*, Lijie Li, Shaohua Jin, Shusen Chen, Qingze Jiao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

73 Citations (Scopus)

Abstract

Crystals of γ-HNIW were transformed into crystals of ε-HNIW by application of a drowning-out process in the presence of different additives, namely ethylene glycol, triacetin, and aminoacetic acid. They show different effects on the crystal morphology of ε-HNIW and cause less angular and more regular structures. Investigation of the sensitivities of the different ε-HNIW crystals shows that their angles and regularity have an influence on the impact sensitivity. Aminoacetic acid selectively inhibits the growth of individual ε-HNIW crystal faces to modify the morphology into spherical shape, these ε-HNIW crystals are of much lower sensitivity, even compared with general RDX and HMX explosives.

Original languageEnglish
Pages (from-to)77-82
Number of pages6
JournalPropellants, Explosives, Pyrotechnics
Volume37
Issue number1
DOIs
Publication statusPublished - Feb 2012

Keywords

  • Additives
  • Crystal growth
  • HNIW
  • Hexanitrohexaazaisowurtzitane
  • Insensitive explosives

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