Health & Environmental Research Online (HERO)


Print Feedback Export to File
7764097 
Journal Article 
Microstructure of the HMX-Based PBX KS32 after Mechanical Loading 
Herrmann, M; Foerter-Barth, U; Bohn, MA; Krause, H; Koch, M; Arnold, W 
2015 
1 
Propellants, Explosives, Pyrotechnics
ISSN: 0721-3115 
Wiley-VCH Verlag 
40 
6 
880-885 
English 
WOS:000368450400013 
Non-destructive X-ray diffraction techniques were applied in order to monitor the influence of mechanical and shock-loading on the microstructure of the plastic-bonded high explosive KS32. The investigations uncovered damage to embedded coarse HMX crystals and to the binder system HTPB-IPDI. Damage to the crystals occurred already during the kneading process in terms of deformation twinning. On higher loading between 400 MPa (static) and 480 MPa (dynamic) also crystal fracture was observed. The change in the binder structure was found after both static and dynamic loading, but not in the cured, differently kneaded samples. Moreover, the change in binder structure after dynamic loading was verified by dynamic mechanical analysis, and interpreted as a partial damage of the binder rubber shell around the explosive particles. The results are compared to literature data from imaging techniques. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 
Microstructure; PBX; Shock-loading; X-ray diffraction; Dynamic mechanical analysis