Complete Equations of State for Cyclotetramethylene Tetranitramine
Journal Article
·
· Propellants, Explosives, Pyrotechnics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Complete equations of state for the volumetric deformation of the β-polymorph of cyclotetramethylene tetranitramine (β-HMX) have been derived from its Helmholtz free energy. Dispersion-corrected density functional theory calculations were used to compute the dependence of the frequencies of the vibrational normal modes on specific volume. Here, the normal mode frequencies were used directly to generate both a tabular equation of state and an approximate model where the sum over normal mode frequencies is replaced by a set of five Debye models.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- LDRD; USDOE
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1868269
- Alternate ID(s):
- OSTI ID: 1804810
- Report Number(s):
- LA-UR-20-27725
- Journal Information:
- Propellants, Explosives, Pyrotechnics, Journal Name: Propellants, Explosives, Pyrotechnics Journal Issue: 5 Vol. 46; ISSN 0721-3115
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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