Absolute equation of state measurements of iron using laser driven shocks

Benuzzi‐Mounaix, A.; Kœnig, M.; Hüser, G.; Faral, B.; Batani, D.; Henry, E.; Tomasini, M; Marchet, B.; Hall, Tom; Boustie, M.; Rességuier, T. de; Hallouin, M.; Guyot, F.; Andrault, Denis; Charpin, Th.

doi:10.1063/1.1478557

Cited by 56 publications

(24 citation statements)

References 17 publications

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“…Also, new dynamic measurements address the EOS and high-pressure melt transition in Fe ͑Benuzzi- Mounaix et al, 2002;Nguyen and Holmes, 2004͒, relevant to the inner-core, outer-core boundary region of the interior of Earth. A key issue here is resolving the discrepancy between the highpressure melt temperature detected dynamically in shock experiments and static measurements in a diamond-anvil cell ͑DAC͒.…”

Section: Planetary Interiors and Equations Of Statementioning

confidence: 99%

Experimental astrophysics with high power lasers andZpinches

2006

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With the advent of high-energy-density ͑HED͒ experimental facilities, such as high-energy lasers and fast Z-pinch, pulsed-power facilities, millimeter-scale quantities of matter can be placed in extreme states of density, temperature, and/or velocity. This has enabled the emergence of a new class of experimental science, HED laboratory astrophysics, wherein the properties of matter and the processes that occur under extreme astrophysical conditions can be examined in the laboratory. Areas particularly suitable to this class of experimental astrophysics include the study of opacities relevant to stellar interiors, equations of state relevant to planetary interiors, strong shock-driven nonlinear hydrodynamics and radiative dynamics relevant to supernova explosions and subsequent evolution, protostellar jets and high Mach number flows, radiatively driven molecular clouds and nonlinear photoevaporation front dynamics, and photoionized plasmas relevant to accretion disks around compact objects such as black holes and neutron stars.

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Section: Planetary Interiors and Equations Of Statementioning

confidence: 99%

Experimental astrophysics with high power lasers andZpinches

2006

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“…Previous shock wave studies of molybdenum provided only constraints on the equation of state 16 or sound velocities 2,9,37 and could not directly determine the stability of different phases. Laserdriven dynamic compression experiments have emerged in recent years as a novel technique for probing the ultra-high pressure behavior of materials [38][39][40] . In laser-shock experiments, the application of pulsed high-powered laser energy ablates the surface of a sample creating a hot, expanding plasma which exerts pressure on the surrounding material resulting in the propagation of a strong shock wave through the sample.…”

Section: Introductionmentioning

confidence: 99%

X-ray diffraction of molybdenum under shock compression to 450 GPa

et al. 2015

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Molybdenum (Mo) is a body-centered-cubic (BCC) transition metal that has widespread technological applications. While the BCC transition elements are used as test cases for understanding the behavior of metals under extreme conditions, the melting curves and phase transitions of these elements have been the subject of stark disagreements in recent years. Here we use X-ray diffraction to examine the phase stability and melting behavior of Mo under shock loading to 450 GPa. The BCC phase of Mo remains stable along the Hugoniot until 380 GPa. Our results do not support previous claims of a shallow melting curve for molybdenum.

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“…It has been introduced by researchers from Los Alamos [33], and later, it has been mainly used for experiments relative to laser-driven shock and studies of materials at extreme pressures [34,35]. In this context, it has found recent applications for shock-timing in the context of implosion experiments on the National Ignition Facility [36].…”

Section: Visarmentioning

confidence: 99%