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7763557 
Journal Article 
Crystallization of insensitive HMX 
Kroeber, H; Teipel, U 
2008 
1 
Propellants, Explosives, Pyrotechnics
ISSN: 0721-3115 
Wiley-VCH Verlag 
33 
1 
33-36 
English 
WOS:000253401800006 
In this study HMX was recrystallized from different solvents by a cooling crystallization process to improve the product quality and to produce a more insensitive product. It was found that particles with the best quality were crystallized from propylene-carbonate with a nucleation initiation by dosing a small amount of water as drowning-out substance. This leads to particles with a very high density (near to the theoretical value) and thus to particles with a small amount of inclusions. GAP tests with this product show less sensitivity against shock. A clear linear dependence of the particle density on the shock initiation pressure was found. The particle density is relatively easy to measure so it will be a useful measure to determine the sensitivity of the material. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA. 
crystallization; crystals; HMX; insensitive energetic materials