Journal article
The elastic constants and related properties of beta-HMX determined by Brillouin scattering
The Journal of chemical physics, Vol.122(17), pp.174701-174701
05/01/2005
DOI: 10.1063/1.1883627
PMID: 15910054
Abstract
By scattering from a variety of acoustic phonons, a complete stiffness tensor has been determined for crystalline beta-HMX. The results are compared with recent experimental and theoretical determinations of the elastic constants and bulk modulus. Reasons for disagreement are discussed in terms of experimental limitations and anharmonic effects. The observed ordering of stiffness constants, C(11) (18.4 GPa), C(22) (14.4 GPa), and C(33) (12.4 GPa), is qualitatively associated with physical phenomena including cleavage planes, patterns in crystal growth, and molecular packing. This interpretation is further corroborated by the linear compressibilities plotted in three crystallographic planes. The Voigt-Reuss-Hill bulk and shear moduli were found to be 9.9 and 3.7 GPa, respectively. The elasticity of beta-HMX is also discussed in relation to proposed mechanisms for the initiation of detonation.
Details
- Title: Subtitle
- The elastic constants and related properties of beta-HMX determined by Brillouin scattering
- Creators
- Lewis L Stevens - University of Nebraska–LincolnCraig J Eckhardt
- Resource Type
- Journal article
- Publication Details
- The Journal of chemical physics, Vol.122(17), pp.174701-174701
- DOI
- 10.1063/1.1883627
- PMID
- 15910054
- ISSN
- 0021-9606
- eISSN
- 1089-7690
- Language
- English
- Date published
- 05/01/2005
- Academic Unit
- Pharmaceutical Sciences and Experimental Therapeutics
- Record Identifier
- 9984365889402771
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