Measurements of the velocity of sound in shock-compressed quartzite, dolomite, anhydrite, sodium chloride, paraffin, plexiglas, polyethylene, and fluoroplast-4

Pavlovskii, M. N.

doi:10.1007/bf00864165

Cited by 10 publications

(4 citation statements)

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“…The data for sound velocity in silica at high pressure are summarized in Figure 3. As shown in this figure, the black squares [34] and triangles [31] represent longitudinal sound velocity data measured for crystal quartz, respectively, along quartz shock Hugoniot and spanning shock melting pressure around 200 GPa. The sound speed data from theoretical models for quartz were also plotted in Figure 3, which were calculated for initial density of fused silica as summarized in Ref.…”

Section: Resultsmentioning

confidence: 99%

“…Sound velocity describes the off-Hugoniot properties of a material and offers constraints on presence of chemical bonds based on a thermodynamically consistent analysis. The experimental determination of the speed of sound behind a shock front is of great interest for studying phase transition and geophysical problems [31][32][33][34]. The Grüneisen coefficient could be also determined by the sound velocity along a known Hugoniot curve.…”

Section: Introductionmentioning

confidence: 99%

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Sound Velocity Measurement of Shock-Compressed Quartz at Extreme Conditions

et al. 2021

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The physical properties of basic minerals such as magnesium silicates, oxides, and silica at extreme conditions, up to 1000 s of GPa, are crucial to understand the behaviors of magma oceans and melting in Super-Earths discovered to data. Their sound velocity at the conditions relevant to the Super-Earth’s mantle is a key parameter for melting process in determining the physical and chemical evolution of planetary interiors. In this article, we used laser indirectly driven shock compression for quartz to document the sound velocity of quartz at pressures of 270 GPa to 870 GPa during lateral unloadings in a high-power laser facility in China. These measurements demonstrate and improve the technique proposed by Li et al. [PRL 120, 215703 (2018)] to determine the sound velocity. The results compare favorably to the SESAME EoS table and previous data. The Grüneisen parameter at extreme conditions was also calculated from sound velocity data. The data presented in our experiment also provide new information on sound velocity to support the dissociation and metallization for liquid quartz at extreme conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sound Velocity Measurement of Shock-Compressed Quartz at Extreme Conditions

et al. 2021

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“…Sound-speed measurements in shock-compressed materials are particularly sensitive to phase transitions like melting that are difficult to identify from measurements of Hugoniot states. Previous measurements of sound velocities in shocked quartz, quartz rocks (Chhabildas, 1986;Grady et al, 1974Grady et al, , 1975McQueen, 1992;Morgan & Fritz, 1979;Pavlovskii, 1976), and fused silica (Chhabildas & Grady, 1984;McQueen, 1992;Morgan & Fritz, 1979) have been described as "disappointing" (McQueen, 1992) because of the large scatter both within and between the different data sets (see supporting information Figure S1). For example, repeated sound-speed measurements in fused silica shocked to nearly identical stress states resulted in a velocity difference as high as ∼10-20% in the work of McQueen (1992).…”

Section: Introductionmentioning

confidence: 99%

Sound Velocities in Shock‐Synthesized Stishovite to 72 GPa

Berryman

Winey

Gupta

et al. 2019

Geophysical Research Letters

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Stishovite (rutile-type SiO 2 ) is the archetype of dense silicates and may occur in postgarnet eclogitic rocks at lower-mantle conditions. Sound velocities in stishovite are fundamental to understanding its mechanical and thermodynamic behavior at high pressure and temperature. Here, we use plate-impact experiments combined with velocity interferometry to determine the stress, density, and longitudinal sound speed in stishovite formed during shock compression of fused silica at 44 GPa and above. The measured sound speeds range from 12.3(8) km/s at 43.8(8) GPa to 9.8(4) km/s at 72.7(11) GPa. The decrease observed at 64 GPa reflects a decrease in the shear modulus of stishovite, likely due to the onset of melting. By 72 GPa, the measured sound speed agrees with the theoretical bulk sound speed indicating loss of all shear stiffness due to complete melting. Our sound velocity results provide direct evidence for shock-induced melting, in agreement with previous pyrometry data.

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“…The authors of [33,34] estimated sound speeds in shock-compressed dielectrics using electromagnetic and manganin sensors. The x − t diagram illustrating the typical setup for an experiment using internal Lagrangian type sensors appears in Fig.…”

Section: Sound Speed Measurement With Electromagnetic and Manganin Sementioning

confidence: 99%

Determination of Hugoniots and Expansion Isentropes

Zhernokletov¹

Shock Wave and High Pressure Phenomena

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Measurements of the velocity of sound in shock-compressed quartzite, dolomite, anhydrite, sodium chloride, paraffin, plexiglas, polyethylene, and fluoroplast-4

Cited by 10 publications

References 1 publication

Sound Velocity Measurement of Shock-Compressed Quartz at Extreme Conditions

Sound Velocity Measurement of Shock-Compressed Quartz at Extreme Conditions

Sound Velocities in Shock‐Synthesized Stishovite to 72 GPa

Determination of Hugoniots and Expansion Isentropes

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