Estimation of melting critical point parameters

Prut, V. V.

doi:10.1134/s1063784208050241

Cited by 5 publications

(10 citation statements)

References 5 publications

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“…( 6) is the specific free energy of vibrational motion of atoms localized in cell. In terms of the Einstein vibration spectrum model, this term has the form (11)…”

Section: Three-phase Model Of a Simple Mattermentioning

confidence: 99%

“…Recently the applicability of the Landau's theory to liquid and solid at high pressures (P) and temperatures (T) has been also questioned in [6][7][8][9][10][11][12][13][14]. The point is that the difference in structures of a solid and its melt becomes insignificant at high P and T [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Until the present time a CL PT critical point has not be observed experimentally. But the searches and predictions of a CL PT critical point are being continued [9][10][11][12][13][14]. In [9], the P-T parameters of the CL PT critical point were estimated for iron based on the ideas presented in that paper:…”

Section: Introductionmentioning

confidence: 99%

“…In [11], the P-T parameters of the CL PT critical point of cupper were estimated based on the analytical model proposed there:…”

Section: Introductionmentioning

confidence: 99%

“…In [11], the values of P cm also were estimated for other simple matters. It was shown that the most compressible elementary crystals (helium and alkali metals) have the lowest P cm .…”

Section: Introductionmentioning

confidence: 99%

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On the Critical Melting Point of a Simple Matter

Magomedov

2021

Phys. Solid State

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The problem of appearance and disappearance of the S-loop of the first-order phase transition (PT) in an isotherm of the equation of state near the crystal-liquid (CL) PT was studied using the threephase model of a simple matter. The calculations carrier out for argon is shown that the S-loop of CL PT in an isotherm of the equation of state appears because of a sharp decrease and subsequent increase in the pressure related to the formation of delocalized atoms as the specific volume increases isothermally. As temperature increases, the pressure in an isotherm related to the delocalization of atoms transits from the negative region (where it compresses the system) to the positive region (where is stretches the system). Such a behavior of this function leads to the formation of the S-loop of CL PT in an isotherm of the equation of state and also to the disappearance of the S-loop of CL PT at high temperatures with the formation of the critical point of CL PT. The change in the parameters of the CL PT critical point is studied as the number of atoms in the nanosystem decreases. It was shown the critical temperature and pressure decrease in going to a nanosystem, and the critical molar volume increases. The calculations in terms of the three-phase model of a simple matter show that the structure in the CL PT critical point is close to the amorphous packing. The parameters of this amorphous structure in the CL PT critical point are changed slightly as the number of atoms in the nanosystem decreases.

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“…( 6) is the specific free energy of vibrational motion of atoms localized in cell. In terms of the Einstein vibration spectrum model, this term has the form (11)…”

Section: Three-phase Model Of a Simple Mattermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In [11], the P-T parameters of the CL PT critical point of cupper were estimated based on the analytical model proposed there:…”

Section: Introductionmentioning

confidence: 99%

“…In [11], the values of P cm also were estimated for other simple matters. It was shown that the most compressible elementary crystals (helium and alkali metals) have the lowest P cm .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

On the Critical Melting Point of a Simple Matter

Magomedov

2021

Phys. Solid State

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Critical point of melting and its change at the decreases of a nanocrystal size

Magomedov

2021

Journal of Physics and Chemistry of Solids

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Nonlinear reflection of a nanosecond laser pulse from thin aluminum film in the temperature range 2–14 kK

Карабутов

Kaptilniy

Ksenofontov³

et al. 2015

Laser Phys. Lett.

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This letter aims to experimentally demonstrate the possibility of measuring the temporal dependencies of the surface temperature of an aluminum film confined by a transparent dielectric in the range below and above the critical temperature of aluminum (from 2 kK to 14 kK). Such temperatures are achieved under the action of a powerful linearly-polarized laser pulse of one nanosecond in duration onto the film's surface. To find the temporal dependencies of the temperature of the aluminum film the nonlinear reflection coefficient of its irradiated surface is measured to determine the radiation of a Q-switched Nd:YAG laser at the fundamental wavelength.

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Estimation of melting critical point parameters

Cited by 5 publications

References 5 publications

On the Critical Melting Point of a Simple Matter

On the Critical Melting Point of a Simple Matter

Critical point of melting and its change at the decreases of a nanocrystal size

Nonlinear reflection of a nanosecond laser pulse from thin aluminum film in the temperature range 2–14 kK

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