Detection of the alpha and gamma polymorphs of HMX in beta-HMX by Raman spectroscopy
The Raman spectra of powders of the beta-HMX (cyclotetramethylene- tetranitramine) polymorph containing 2 to 14% of the alpha- or gamma-HMX polymorphs have been measured. The Raman spectra of each polymorph contains over 40 peaks, but a beta phase peak at 361 cm/sup /minus/1/, an alpha phase peak at 1217 cm/sup /minus/1/, and a gamma phase peak at 1225 cm/sup /minus/1/ are sufficiently isolated from other peaks to be used for concentration measurements. The relatively strong intensities of the peaks indicate that concentrations on the order of 0.1% of alpha or gamma phases in the beta phase should be detectable. Applications of this technique have been qualification of a production batch of HMX and testing for polymorph conversion in aged pellets. 11 refs., 7 figs.
- Research Organization:
- EG and G Mound Applied Technologies, Miamisburg, OH (USA)
- DOE Contract Number:
- AC04-88DP43495
- OSTI ID:
- 6502012
- Report Number(s):
- MLM-3558; ON: DE89007305
- Country of Publication:
- United States
- Language:
- English
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CHEMICAL EXPLOSIVES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
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ORGANIC NITROGEN COMPOUNDS
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