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

Femtosecond diffraction studies of the sodium chloride phase diagram under laser shock compression

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/5.0094894· OSTI ID:1908433
 [1];  [2];  [2];  [2];  [2];  [3];  [2];  [2];  [2];  [4];  [2];  [5];  [5];  [5];  [6];  [3]
  1. Johns Hopkins Univ., Baltimore, MD (United States); SLAC
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Johns Hopkins Univ., Baltimore, MD (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
  6. Princeton Univ., NJ (United States)
The phase diagram of sodium chloride (NaCl) under laser shock compression has been studied at Linac Coherent Light Source (LCLS) at the x-ray free-electron laser facility. Both solid–solid (B1 → B2) and solid–liquid (B2 → liquid) transitions have been observed along the Hugoniot over nanosecond time scales. By combining structural measurements through in situ x-ray diffraction, pressure determination through velocimetry, and a thermal equation-of-state, the shock-compressed data are used to constrain the phase diagram of NaCl. Transformation into the B2 phase is found to occur at 28(2) GPa, and B2–liquid coexistence is observed between 54(4) and 66(6) GPa, with near full melt at 66(6) GPa. Late-time pressure release from an initial shocked B2-state results in a B2 → B1 back transformation. Our results show agreement with previous static compression data, suggesting that the time scale for melting is very rapid and that equilibrium states in NaCl are being accessed over nanosecond time scales. Finally, a multiphase equation-of-state description of NaCl incorporated into a one-dimensional hydrocode is used to interpret pressure and temperature evolution over these rapid time scales.
Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC02-76SF00515; AC52-07NA27344; SC0022096
OSTI ID:
1908433
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 132; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (56)

Introduction to High-Energy-Density Physics book January 2006
Temperatures Induced by Shock Waves in Minerals: Applications to Geophysics book January 1982
Grüneisen parameter of NaCl at high compressions journal January 1977
HYADES—A plasma hydrodynamics code for dense plasma studies journal January 1994
Importance of van der Waals interaction on structural, vibrational, and thermodynamic properties of NaCl journal May 2018
Finite strain isotherm and velocities for single-crystal and polycrystalline NaCl at high pressures and 300°K journal January 1978
First principles versus spherical ion models of the B1 and B2 phases of NaCl journal January 1985
Compressibility of solids journal January 1987
Melting, thermal expansion, and phase transitions of iron at high pressures journal January 1990
When a phase is born journal May 2006
Ramp compression of diamond to five terapascals journal July 2014
Equation of state of iron under core conditions of large rocky exoplanets journal April 2018
Metastability of diamond ramp-compressed to 2 terapascals journal January 2021
Femtosecond diffraction studies of solid and liquid phase changes in shock-compressed bismuth journal November 2018
Transformation kinetics for the shock wave induced phase transition in cadmium sulfide crystals journal January 2002
High‐Pressure Equation of State for NaCl, KCl, and CsCl journal July 1971
Line-imaging velocimeter for shock diagnostics at the OMEGA laser facility journal November 2004
X-ray preheating of window materials in direct-drive shock-wave timing experiments journal December 2006
Direct measurements of the α-ϵ transition stress and kinetics for shocked iron journal May 2009
High pressure phase transformation in iron under fast compression journal December 2009
Shock‐induced melting and shear banding in single‐crystal NaCl journal January 1988
Hysteresis in the high pressure transformation of bcc‐ to hcp‐iron journal April 1991
High strain-rate plastic flow in Al and Fe journal December 2011
The NaCl pressure standard journal November 1999
Time-dependence of the alpha to epsilon phase transformation in iron journal December 2013
Determining the refractive index of shocked [100] lithium fluoride to the limit of transmissibility journal July 2014
Shock drive capabilities of a 30-Joule laser at the matter in extreme conditions hutch of the Linac Coherent Light Source journal October 2017
Two-phase equation of state for lithium fluoride journal February 2019
Recovery of metastable dense Bi synthesized by shock compression journal March 2019
Toward an internally consistent pressure scale journal May 2007
Equations of state of MgO, Au, Pt, NaCl-B1, and NaCl-B2: Internally consistent high-temperature pressure scales journal December 2007
Effect of non-hydrostaticity on the α-ε transition of iron journal December 1990
Melting of Sodium Chloride at Pressures to 65 kbar journal September 1969
Measurement of the B 1- B 2 transition pressure in NaCl at high temperatures journal July 1987
Molecular-dynamics studies on the shock-induced phase transition of aMgF2crystal journal August 1995
Pressure-volume equation of state of the high-pressure B 2 phase of NaCl journal March 2002
First-principles study of the rocksalt–cesium chloride relative phase stability in alkali halides journal October 2002
Phenomenological theory of the reconstructive phase transition between the NaCl and CsCl structure types journal April 2003
Determination of the phase boundary between the B 1 and B 2 phases in NaCl by in situ x-ray diffraction journal October 2003
Time-resolved infrared radiometry of NaCl crystals under shock compression between 17 and43GPa journal October 2004
Freezing kinetics in overcompressed water journal May 2007
Orientation and rate dependence in high strain-rate compression of single-crystal silicon journal December 2012
X-ray diffraction of molybdenum under shock compression to 450 GPa journal November 2015
I n   s i t u observation of a phase transition in silicon carbide under shock compression using pulsed x-ray diffraction journal June 2019
Ultrafast X-Ray Diffraction Studies of the Phase Transitions and Equation of State of Scandium Shock Compressed to 82 GPa journal January 2017
In situ X-Ray Diffraction of Shock-Compressed Fused Silica journal March 2018
Identification of Phase Transitions and Metastability in Dynamically Compressed Antimony Using Ultrafast X-Ray Diffraction journal June 2019
Measurement of Body-Centered Cubic Gold and Melting under Shock Compression journal July 2019
Nonisentropic Release of a Shocked Solid journal December 2019
Melting of Tantalum at Multimegabar Pressures on the Nanosecond Timescale journal June 2021
Nucleating a Different Coordination in a Crystal under Pressure: A Study of the B1−B2 Transition in NaCl by Metadynamics journal August 2021
Melting of LiF and NaCl to 1 Mbar: Systematics of Ionic Solids at Extreme Conditions journal June 1997
Melting and refreezing of zirconium observed using ultrafast x-ray diffraction journal February 2020
Crystal structure and equation of state of Fe-Si alloys at super-Earth core conditions journal April 2018
Melting curve of NaCl to 20 GPa from electrical measurements of capacitive current journal August 2015
Ultra-High Pressure Dynamic Compression of Geological Materials journal February 2019

Similar Records

Two-phase equation of state for lithium fluoride
Journal Article · Wed Feb 20 23:00:00 EST 2019 · Journal of Chemical Physics · OSTI ID:1497948

B1-B2 transition in shock-compressed MgO
Journal Article · Fri Jun 07 00:00:00 EDT 2024 · Science Advances · OSTI ID:2439688