The sound velocity throughout the P-ρ phase-space with application to laser induced shock wave in matter precompressed by a diamond anvil cell

2014 ◽  
Vol 115 (21) ◽  
pp. 213503 ◽  
Author(s):  
N. Nissim ◽  
S. Eliezer ◽  
M. Werdiger
Keyword(s):  
Shock Wave ◽  
Phase Space ◽  
Sound Velocity ◽  
Diamond Anvil Cell ◽  
Diamond Anvil

scholarly journals Approaching the “cold curve” in laser-driven shock wave experiment of a matter precompressed by a partially perforated diamond anvil

2012 ◽  
Vol 31 (1) ◽  
pp. 73-79 ◽  
Author(s):  
N. Nissim ◽  
S. Eliezer ◽  
M. Werdiger ◽  
L. Perelmutter
Keyword(s):  
Shock Wave ◽  
Diamond Anvil Cell ◽  
Compression Curve ◽  
One Dimensional ◽  
Cold Compression ◽  
Relative Contribution ◽  
Order Of Magnitude ◽  
Diamond Anvil ◽  
Hugoniot Curves ◽  
Shock Wave Experiment

AbstractThis paper suggests a novel route to approach the cold compression curve in laser-plasma induced shock waves. This effect is achieved with a precompression in a diamond anvil cell (DAC). In order to keep the necessary structure of one dimensional shock wave it is required to use a diamond anvil cell with a partially perforated diamond anvil. Precompression pressures of about 50 GPa, that are an order of magnitude higher than the currently reported pressures, are possible to obtain with presentley existing diamond anvil cell technology. The precompressed Hugoniot of Al was calculated for different precompression pressures and it was found that at precompression pressure of 50 GPa the Hugoniot follows the “cold curve” up to about 2 Mbar and 5.2 g/cc. Furthermore, the thermal relative contribution on the Hugoniot curves is calculated.

Sound velocity of iron up to 152 GPa by picosecond acoustics in diamond anvil cell

2014 ◽  
Vol 41 (5) ◽  
pp. 1459-1464 ◽  
Author(s):  
F. Decremps ◽  
D. Antonangeli ◽  
M. Gauthier ◽  
S. Ayrinhac ◽  
M. Morand ◽  
...  
Keyword(s):  
Sound Velocity ◽  
Diamond Anvil Cell ◽  
Diamond Anvil

DIAMOND ANVIL CELL ≡ SHOCK WAVE GUN ?

1984 ◽  
Vol 45 (C8) ◽  
pp. C8-117-C8-120
Author(s):  
M. Madon ◽  
J. Peyronneau ◽  
J. P. Poirier
Keyword(s):  
Shock Wave ◽  
Diamond Anvil Cell ◽  
Diamond Anvil

scholarly journals Synthesis of Manganese Mononitride with Tetragonal Structure under Pressure

Crystals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 511
Author(s):  
Dajian Huang ◽  
Caoping Niu ◽  
Bingmin Yan ◽  
Bo Gao ◽  
Lailei Wu ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Space ◽  
Laser Heating ◽  
Diamond Anvil Cell ◽  
Ambient Pressure ◽  
Tetragonal Structure ◽  
Metal Nitrides ◽  
Transition Metal Nitrides ◽  
Diamond Anvil

The exploration of the vast phase space of transition metal nitrides is critical for discovering novel materials and potential technological applications. Manganese mononitride with a tetragonal structure (space group I4/mmm) was synthesized in a laser-heating diamond anvil cell, which could be quenched to ambient pressure. The bulk modulus of 173 GPa was measured using in situ high-pressure diffraction, and the axial compressibility shows that, under pressure, the a direction is much more compressible than the c direction in tetragonal MnN. DFT results with correction of the on-site repulsion (GGA + U) confirm that tetragonal MnN is energetically stable and antiferromagnetic. This study highlights the need to include on-site repulsion to understand 3d metal nitrides.

Measurement of Physical Properties of Lubricants Under High Pressure by Brillouin Scattering in a Diamond Anvil Cell

1995 ◽  
Vol 117 (3) ◽  
pp. 519-523 ◽  
Author(s):  
Y. Nakamura ◽  
I. Fujishiro ◽  
K. Nishibe ◽  
H. Kawakami
Keyword(s):  
High Pressure ◽  
Shear Modulus ◽  
Sound Velocity ◽  
Diamond Anvil Cell ◽  
Brillouin Scattering ◽  
Transverse Mode ◽  
Thermodynamic Relation ◽  
Slope Change ◽  
Scattering Spectra ◽  
Diamond Anvil

Brillouin scattering spectra and their transverse mode were measured for paraffinic and naphthenic synthetic lubricants, employing a high-pressure diamond anvil cell (DAC). Sound velocity, density, refractive index, and shear modulus under high pressure were obtained. The density obtained from the thermodynamic relation was compared with that from Lorentz-Lorenz‘s formula. The densities were also compared with Dowson‘s density-pressure equation of lubricants. The sound velocity in the transverse mode and shear modulus were obtained for 5P4E up to 2.7 GPa. A slope change in the pressure-sound velocity diagram was confirmed at about 0.3 GPa, which may be associated with crystallizaton of 5P4E, observed through a diamond optical window in the DAC.

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