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Title: Structural Transformation and Melting in Gold Shock Compressed to 355 GPa

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [3];  [4];  [4];  [4];  [2];  [4];  [4];  [4];  [2]
  1. Washington State Univ., Pullman, WA (United States); Institute for Shock Physics, Washington State University
  2. Washington State Univ., Pullman, WA (United States)
  3. Washington State Univ., Argonne, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Washington State Univ., Argonne, IL (United States)
+ Show Author Affiliations

Gold is believed to retain its ambient crystal structure to very high pressures under static and shock compression, enabling its wide use as a pressure marker. Our in situ x-ray diffraction measurements on shock-compressed gold show that it transforms to the body-centered-cubic (bcc) phase, with an onset pressure between 150-176 GPa. Liquid/bcc coexistence was observed between 220-302 GPa and complete melting occurs by 355 GPa. Furthermore, our observation of the lower coordination bcc structure in shocked gold is in marked contrast with theoretical predictions and the reported observation of the hexagonal-close-packed structure under static compression.

Research Organization:
Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
Grant/Contract Number:
NA0002007
OSTI ID:
1545791
Alternate ID(s):
OSTI ID: 1545420; OSTI ID: 1574298
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 123; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (41)

Equation of state data for gold in the pressure range <10 TPa journal April 2000
Laser interferometer for measuring high velocities of any reflecting surface journal November 1972
Phase transitions under shock-wave loading journal July 1977
Lattice dynamics and the high-pressure equation of state of Au journal February 2004
Theoretical Confirmation of the High Pressure Simple Cubic Phase in Calcium journal November 1995
Nanosecond Melting and Recrystallization in Shock-Compressed Silicon journal September 2018
Two-dimensional detector software: From real detector to idealised image or two-theta scan journal January 1996
Phase transitions in alkaline earth metals under pressure journal January 1984
Terapascal static pressure generation with ultrahigh yield strength nanodiamond journal July 2016
Pressure-induced stacking sequence variations in gold from first principles journal December 2013
Measurement of Body-Centered Cubic Gold and Melting under Shock Compression journal July 2019
Strategies for in situ laser heating in the diamond anvil cell at an X-ray diffraction beamline journal November 2013
Comment on “Theoretical prediction of phase transition in gold” journal November 2002
The equation of state of the gold calibration standard journal February 1984
Theoretical extension of the gold pressure calibration standard beyond 3 Mbars journal May 2003
�ber den Mechanismus der Stahlh�rtung journal May 1930
Plasticity Induced by Shock Waves in Nonequilibrium Molecular-Dynamics Simulations journal June 1998
Structural transformations including melting and recrystallization during shock compression and release of germanium up to 45 GPa journal April 2019
Shock melting and Hugoniot calculations for gold journal February 1990
Why gold is the noblest of all the metals journal July 1995
Theoretical prediction of a phase transition in gold journal April 2001
Direct Observations of a Dynamically Driven Phase Transition with in situ X-Ray Diffraction in a Simple Ionic Crystal journal December 2017
Hidden pathway during fcc to bcc/bct transformations: Crystallographic origin of slip martensite in steels journal September 2018
Measurement of temperature in the laser heated diamond anvil cell: comparison between reflective and refractive optics journal May 2018
Real-Time Examination of Atomistic Mechanisms during Shock-Induced Structural Transformation in Silicon journal July 2016
High-Pressure Structural Phase Transitions in Na, Mg, and Al journal March 1982
Melting of Copper, Silver, and Gold at High Pressures journal May 1966
Phase transition lowering in dynamically compressed silicon journal September 2018
Direct Observation of the α − ε Transition in Shock-Compressed Iron via Nanosecond X-Ray Diffraction journal August 2005
Isothermal equation of state for gold with a He-pressure medium journal September 2008
Terapascal static pressure generation with ultrahigh yield strength nanodiamond text January 2016
Equations of state of six metals above 94 GPa journal September 2004
Equation of state and high-pressure/high-temperature phase diagram of magnesium journal October 2014
Determining the refractive index of shocked [100] lithium fluoride to the limit of transmissibility journal July 2014
Shock adiabatic curves of metals: New data, statistical analysis, and general laws journal January 1981
The laser shock station in the dynamic compression sector. I journal May 2019
Lattice Dynamics and the High Pressure Equation of State of Au text January 2003
Ab initio calculations of the elastic and thermodynamic properties of gold under pressure journal February 2017
Hugoniot measurement of gold at high pressures of up to 580GPa journal February 2008
High-pressure phase diagram of gold from first-principles calculations: Converging to an isotropic atomic stacking order journal March 2016
Noblest of All Metals Is Structurally Unstable at High Pressure journal January 2007

Cited By (2)

Direct observation of the hcp-bcc phase transition and melting along the principal Hugoniot of Mg journal January 2020
Measurement of Body-Centered Cubic Gold and Melting under Shock Compression journal July 2019

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