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Complete Equations of State for Cyclotetramethylene Tetranitramine

Journal Article · · Propellants, Explosives, Pyrotechnics
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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