skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Estimates of crystalline LiF thermal conductivity at high temperature and pressure by a Green-Kubo method

Journal Article · · Physical Review B
 [1];  [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Here, given the unique optical properties of LiF, it is often used as an observation window in high-temperature and -pressure experiments; hence, estimates of its transmission properties are necessary to interpret observations. Since direct measurements of the thermal conductivity of LiF at the appropriate conditions are difficult, we resort to molecular simulation methods. Using an empirical potential validated against ab initio phonon density of states, we estimate the thermal conductivity of LiF at high temperatures (1000–4000 K) and pressures (100–400 GPa) with the Green-Kubo method. We also compare these estimates to those derived directly from ab initio data. To ascertain the correct phase of LiF at these extreme conditions, we calculate the (relative) phase stability of the B1 and B2 structures using a quasiharmonic ab initio model of the free energy. We also estimate the thermal conductivity of LiF in an uniaxial loading state that emulates initial stages of compression in high-stress ramp loading experiments and show the degree of anisotropy induced in the conductivity due to deformation.

Research Organization:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1297821
Alternate ID(s):
OSTI ID: 1263718
Report Number(s):
SAND-2016-3197J; PRBMDO; 637775
Journal Information:
Physical Review B, Vol. 94, Issue 1; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

References (69)

Anharmonic vibrational properties in periodic systems: energy, electron-phonon coupling, and stress journal April 2013
Optical Study of the Characteristics of Shock-Compressed Condensed Dielectrics journal February 1968
Lithium Fluoride: Heat Content from 0 to 900°, the Melting Point and Heat of Fusion 1 journal October 1954
Heat transport in silicon from first-principles calculations journal August 2011
Characteristics of thermal conductivity in classical water models journal February 2013
The two-phase model for calculating thermodynamic properties of liquids from molecular dynamics: Validation for the phase diagram of Lennard-Jones fluids journal December 2003
First-principles multiphase equation of state of carbon under extreme conditions journal July 2008
Effects of polarization on equilibrium and dynamic properties of ionic systems journal April 1976
The Statistical Mechanical Theory of Transport Processes. IV. The Equations of Hydrodynamics journal June 1950
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Velocity correction and refractive index changes for [100] lithium fluoride optical windows under shock compression, recompression, and unloading journal May 2008
Divergences Among the Born and Classical Stability Criteria for Cubic Crystals under Hydrostatic Loading journal November 1979
Laser-driven single shock compression of fluid deuterium from 45 to 220 GPa journal January 2009
Reciprocal Relations in Irreversible Processes. I. journal February 1931
Cohesive energy of the alkali halide crystals journal July 1963
Elementary Derivation of Time‐Correlation Formulas for Transport Coefficients journal May 1964
Distributions of phonon lifetimes in Brillouin zones journal March 2015
Carbon under extreme conditions: Phase boundaries and electronic properties from first-principles theory journal January 2006
Phonon Instabilities and the Ideal Strength of Aluminum journal September 2003
Ab initio study of the optical properties of shocked LiF journal October 2005
First-principles calculation of entropy for liquid metals journal December 2013
Necessary and sufficient elastic stability conditions in various crystal systems journal December 2014
Stability of LiF Crystal in the Warm Dense Matter State journal January 2010
Errata: Lattice Energies, Equilibrium Distances, Compressibilities, and Characteristic Frequencies of Alkali Halide Crystals journal April 1947
Principal Hugoniot, reverberating wave, and mechanical reshock measurements of liquid deuterium to 400 GPa using plate impact techniques journal April 2004
Thermal Conductivity of Molten Alkali Metal Fluorides (LiF, NaF, KF) and Their Mixtures journal January 2014
Prediction of instabilities at the atomic scale journal March 2010
Theoretical properties of cubic crystals at arbitrary pressure—III. Stability journal June 1979
Lattice Energies, Equilibrium Distances, Compressibilities and Characteristic Frequencies of Alkali Halide Crystals journal February 1937
A molecular dynamics study of the thermal conductivity of CaF 2 and UO 2 journal June 1991
Melting of LiF and NaCl to 1 Mbar: Systematics of Ionic Solids at Extreme Conditions journal June 1997
Influence of defects on extreme ultraviolet laser ablation of LiF journal October 2013
Mechanical instabilities of homogeneous crystals journal November 1995
Accuracy limits and window corrections for photon Doppler velocimetry journal January 2007
Molecular dynamics of LiF melting journal May 2000
On the nonlocal nature of dislocation nucleation during nanoindentation journal April 2008
Molecular dynamics simulation of swift ion damage in lithium fluoride journal September 2004
ShengBTE: A solver of the Boltzmann transport equation for phonons journal June 2014
Quantifying the early stages of plasticity through nanoscale experiments and simulations journal March 2003
Markoff Random Processes and the Statistical Mechanics of Time‐Dependent Phenomena. II. Irreversible Processes in Fluids journal March 1954
Calculations of the thermal conductivities of ionic materials by simulation with polarizable interaction potentials journal March 2009
A local instability criterion for solid-state defects journal January 2009
Ab initio calculation of phonon dispersions in semiconductors journal March 1991
Refractive index of lithium fluoride ramp compressed to 800 GPa journal June 2011
Shock-Wave Exploration of the High-Pressure Phases of Carbon journal December 2008
Pressure tensor of partial-charge and point-dipole lattices with bulk and surface geometries journal January 1994
Reciprocal Relations in Irreversible Processes. II. journal December 1931
Ab initio calculations of elastic constants and thermodynamic properties of bcc, fcc, and hcp Al crystals under pressure journal July 2002
The internal stability of an elastic solid journal December 2000
Cauchy–Born Rule and the Stability of Crystalline Solids: Static Problems journal September 2006
Statistical-Mechanical Theory of Irreversible Processes. II. Response to Thermal Disturbance journal November 1957
Continuum constitutive models from analytical free energies journal July 2007
Fast free-energy calculations for unstable high-temperature phases journal August 2012
Calculations of Dispersion Curves and Specific Heat for LiF and NaCl Using the Breathing Shell Model journal January 1967
First principles phonon calculations in materials science journal November 2015
Interatomic Distances in Crystals of the Alkali Halides journal September 1933
Effect of Boundaries and Isotopes on the Thermal Conductivity of LiF journal April 1967
Acceleration of convergence for lattice sums journal October 1989
Mechanical and Thermal Properties of Certain Optical Crystalline Materials* journal January 1951
Dynamical matrices, Born effective charges, dielectric permittivity tensors, and interatomic force constants from density-functional perturbation theory journal April 1997
Thermal conductivity and heat capacity of single-crystal LiF and CaF 2 under hydrostatic pressure journal December 1987
Lattice Dynamics of Lithium Fluoride journal April 1968
Die Berechnung optischer und elektrostatischer Gitterpotentiale journal January 1921
Ab initio Force Constant Approach to Phonon Dispersion Relations of Diamond and Graphite journal December 1995
Statistical-Mechanical Theory of Irreversible Processes. I. General Theory and Simple Applications to Magnetic and Conduction Problems journal June 1957
Determining the refractive index of shocked [100] lithium fluoride to the limit of transmissibility journal July 2014
Thermal conductivity of ionic systems from equilibrium molecular dynamics journal February 2011
Real-time x-ray diffraction to examine elastic–plastic deformation in shocked lithium fluoride crystals journal September 1998
Thermal conductivity of molten alkali halides from equilibrium molecular dynamics simulations journal May 2004

Cited By (3)

Two-phase equation of state for lithium fluoride journal February 2019
First-principles simulations of warm dense lithium fluoride journal April 2017
First-Principles Simulations of Warm Dense Lithium Fluoride text January 2017

Similar Records

Influence of defects on the thermal conductivity of compressed LiF
Journal Article · Thu Feb 08 00:00:00 EST 2018 · Physical Review B · OSTI ID:1297821

Kubo–Greenwood approach to conductivity in dense plasmas with average atom models
Journal Article · Wed Apr 13 00:00:00 EDT 2016 · High Energy Density Physics · OSTI ID:1297821

Ab initio cluster study of crystalline NaF
Miscellaneous · Wed Jan 01 00:00:00 EST 1992 · OSTI ID:1297821