Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Influence of defects on the thermal conductivity of compressed LiF

Journal Article · · Physical Review B
 [1];  [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
We report defect formation in LiF, which is used as an observation window in ramp and shock experiments, has significant effects on its transmission properties. Given the extreme conditions of the experiments it is hard to measure the change in transmission directly. Using molecular dynamics, we estimate the change in conductivity as a function of the concentration of likely point and extended defects using a Green-Kubo technique with careful treatment of size effects. With this data, we form a model of the mean behavior and its estimated error; then, we use this model to predict the conductivity of a large sample of defective LiF resulting from a direct simulation of ramp compression as a demonstration of the accuracy of its predictions. Given estimates of defect densities in a LiF window used in an experiment, the model can be used to correct the observations of thermal energy through the window. Also, the methodology we develop is extensible to modeling, with quantified uncertainty, the effects of a variety of defects on the thermal conductivity of solid materials.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1429683
Alternate ID(s):
OSTI ID: 1419906
Report Number(s):
SAND--2017-12204J; 658623
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 5 Vol. 97; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (58)

Heat-Transport Mechanisms in Superlattices journal February 2009
The ionic conductivity of Li-halide crystals journal January 1950
Scattering of phonons by vacancies journal November 1987
Summationsmethoden und Momentfolgen. I journal March 1921
Electronic excitations and defect creation in LiF crystals journal February 1996
First principles phonon calculations in materials science journal November 2015
Dislocations and point defects journal January 1957
Phonon Scattering by Impurity Atmospheres Surrounding Dislocations. III. Combined Mass and Distortion Scattering journal March 1971
Effects of Point Defects on Elastic Precursor Decay in LiF journal May 1972
Method of estimating stacking‐fault energies in alkali halide crystals using creep data journal May 1974
Dislocations, Point‐Defect Clusters, and Cavities in Neutron Irradiated LiF Crystals journal June 1958
Dislocation Velocities, Dislocation Densities, and Plastic Flow in Lithium Fluoride Crystals journal February 1959
Effect of Dislocations on the Thermal Conductivity of Lithium Fluoride journal March 1959
Dislocation Multiplication in Lithium Fluoride Crystals journal April 1960
Behavior of Individual Dislocations in Strain‐Hardened LiF Crystals journal April 1960
The Statistical Mechanical Theory of Transport Processes. IV. The Equations of Hydrodynamics journal June 1950
Intrinsic lattice thermal conductivity of semiconductors from first principles journal December 2007
Dislocation mechanisms for stress relaxation in shocked LiF journal February 1975
Uncertainty quantification in MD simulations of concentration driven ionic flow through a silica nanopore. I. Sensitivity to physical parameters of the pore journal May 2013
Uncertainty quantification in MD simulations of concentration driven ionic flow through a silica nanopore. II. Uncertain potential parameters journal May 2013
Phonon thermal transport through tilt grain boundaries in strontium titanate journal August 2014
Kapitza resistance at segregated boundaries in β-SiC journal September 2015
Thermal transport across symmetric tilt grain boundaries in β -SiC: Effect of dopants and temperature journal July 2016
Determination of the nature of stacking-fault tetrahedra in electron-irradiated silver by high-resolution structural imaging journal May 1988
The contribution of vacancy defects to mass transport in alkali halides-an assessment using theoretical calculations of defect energies journal February 1979
The kinetics of migration of point defects to dislocations journal January 1970
The Scattering of Low-Frequency Lattice Waves by Static Imperfections journal December 1955
Effects of nano-void density, size and spatial population on thermal conductivity: a case study of GaN crystal journal July 2012
Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool journal December 2009
Extracting dislocations and non-dislocation crystal defects from atomistic simulation data journal September 2010
Lattice Thermal Conductivity of Disordered Semiconductor Alloys at High Temperatures journal September 1963
Analysis of Lattice Thermal Conductivity journal December 1963
Effect of Boundaries and Isotopes on the Thermal Conductivity of LiF journal April 1967
Interaction between thermal phonons and dislocations in LiF journal July 1979
Phonon scattering by dislocations in metallic alloys journal March 1981
Lattice Thermal Resistivity due to Dense Arrays of Dislocations journal April 1971
Interaction between Thermal Phonons and Dislocations in LiF journal April 1972
Molecular dynamics of LiF melting journal May 2000
Comparison of atomic-level simulation methods for computing thermal conductivity journal April 2002
Effect of interfacial species mixing on phonon transport in semiconductor superlattices journal February 2009
Towards more accurate molecular dynamics calculation of thermal conductivity: Case study of GaN bulk crystals journal March 2009
Effects of vacancy defects on thermal conductivity in crystalline silicon: A nonequilibrium molecular dynamics study journal March 2011
Heat transport in silicon from first-principles calculations journal August 2011
Thermal interface conductance in Si/Ge superlattices by equilibrium molecular dynamics journal May 2012
Thermal conductance at the interface between crystals using equilibrium and nonequilibrium molecular dynamics journal September 2012
Heat-transport mechanisms in molecular building blocks of inorganic/organic hybrid superlattices journal March 2016
Estimates of crystalline LiF thermal conductivity at high temperature and pressure by a Green-Kubo method journal July 2016
Atomistic calculations of dislocation core energy in aluminium journal February 2017
First-principles Green-Kubo method for thermal conductivity calculations journal July 2017
Generalization of the homogeneous nonequilibrium molecular dynamics method for calculating thermal conductivity to multibody potentials journal October 2009
Invariance of the Dissipative Action at Ultrahigh Strain Rates Above the Strong Shock Threshold journal September 2011
Thermal Transport Along the Dislocation Line in Silicon Carbide journal September 2014
Ab Initio Green-Kubo Approach for the Thermal Conductivity of Solids journal April 2017
Bayesian calibration of computer models journal August 2001
Deformation-Mechanism Maps for LiF and NaCl journal May 1977
Some Scattering Problems in Conduction Theory journal April 1957
Effect of Dislocations on the Thermal Conductivity of LiF journal January 1972
Molecular Dynamics Simulations of Dislocations in TlBr Crystals under an Electrical Field journal January 2016

Cited By (1)

Lattice thermal conductivity of quartz at high pressure and temperature from the Boltzmann transport equation journal December 2019

Similar Records

Estimates of crystalline LiF thermal conductivity at high temperature and pressure by a Green-Kubo method
Journal Article · Sun Jul 17 20:00:00 EDT 2016 · Physical Review B · OSTI ID:1297821

INFLUENCE OF F CENTERS ON THE LATTICE THERMAL CONDUCTIVITY IN LiF
Journal Article · Wed Jun 15 00:00:00 EDT 1960 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D · OSTI ID:4188637

Investigation of the thermal conductivity of molten LiF-NaF-KF with experiments, theory, and equilibrium molecular dynamics
Journal Article · Thu Apr 14 20:00:00 EDT 2022 · Journal of Molecular Liquids · OSTI ID:1875361