Equation-of-state measurements for aluminum, copper, and tantalum in the pressure range 80–440 GPa (0.8–4.4 Mbar)

The pressure sensor proposed by Shen, Gregorian & Holzapfel [High Press. Res. (1991), 7, 73–75], based on the pressure-dependent shift of the luminescence line due to the 5 D 0−7 F 0 electronic transition of Sm2+ in a matrix of BaFCl, has been tested in a diamond-anvil cell and calibrated against the R 1−R 2 doublet shift of ruby and the known NaCl equation of state, in the pressure range between 0.0001 and 4.3 GPa. The parabolic dependence of the shift from the pressure can be approximated by the equation Δ(nm) = 1.46P − 0.047P 2, where the shift, Δ, is in nm and the pressure, P, in GPa. The estimated error in the pressure measurements is 5%. The Sm2+: BaFCl luminescence sensor can be advantageously used in the low to moderate pressure range (0.0001–5 GPa or more).

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Indirect and direct laser driven shock waves and applications to copper equation of state measurements in the 10–40 Mbar pressure range

Physical Review E ◽

10.1103/physreve.54.2162 ◽

1996 ◽

Vol 54 (2) ◽

pp. 2162-2165 ◽

Cited By ~ 90

Author(s):

Alessandra Benuzzi ◽

Thorsten Löwer ◽

Michel Koenig ◽

Bernard Faral ◽

Dimitri Batani ◽

...

Keyword(s):

Equation Of State ◽

Shock Waves ◽

Pressure Range ◽

Direct Laser

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Nucleation Studies in Flowing High-Pressure Steam

Proceedings of the Institution of Mechanical Engineers ◽

10.1243/pime_proc_1975_189_053_02 ◽

1975 ◽

Vol 189 (1) ◽

pp. 427-436 ◽

Cited By ~ 16

Author(s):

F. Bakhtar ◽

D. J. Ryley ◽

K. A. Tubman ◽

J. B. Young

Keyword(s):

High Pressure ◽

Equation Of State ◽

Pressure Range ◽

Virial Coefficient ◽

Second Virial Coefficient ◽

Expansion Rate ◽

Theoretical Treatment ◽

High Pressure Steam ◽

Pressure Steam

A description is given of a theoretical treatment of nucleation in flowing steam employing an equation of state based on the second virial coefficient. Comparison is made with experimental observations of reversion in the pressure range 2–35 bars of steam in a convergent-divergent nozzle of expansion rate P = 104 s-1. The agreement obtained is moderate.

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The equation of state of condensed matter in the 100–200 Mbar pressure range

High Pressure Research ◽

10.1080/08957959008246270 ◽

1990 ◽

Vol 5 (1-6) ◽

pp. 822-825 ◽

Cited By ~ 1

Author(s):

Eugene N. Avrorin

Keyword(s):

Equation Of State ◽

Pressure Range ◽

Condensed Matter

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THERMODYNAMIC PROPERTIES AND THE EQUATION OF STATE OF COPPER

Южно-Сибирский научный вестник ◽

10.25699/sssb.2021.40.6.015 ◽

2021 ◽

pp. 74-81

Author(s):

Н.В. Козырев

Keyword(s):

Experimental Data ◽

Equation Of State ◽

Thermodynamic Properties ◽

Temperature Dependence ◽

Pressure Range ◽

Compression Modulus ◽

Temperature Dependent ◽

Entire Volume ◽

Thermophysical Parameters ◽

Einstein Model

Высокотемпературное уравнение состояния меди получено с использованием экспериментальных данных по термодинамическим свойствам, объемному термическому расширению, сжимаемости, температурной зависимости модуля объемного сжатия. Весь объем экспериментальных данных оптимизирован с использованием температурно-зависящего уравнения Тайта в диапазоне давлений до 2000 кбар и температур от 20-50 K до температуры плавления. Температурная зависимость термодинамических и термофизических параметров описана с использованием расширенной модели Эйнштейна. Полученное уравнение состояния хорошо описывает весь объем экспериментальных данных в пределах погрешности измерений отдельных величин. The high-temperature equation of state of copper is obtained using experimental data on thermodynamic properties, volumetric thermal expansion, compressibility, temperature dependence of the volumetric compression modulus. The entire volume of experimental data is optimized using the temperature-dependent Tate equation in the pressure range up to 2000 kbar and temperatures from 20-50 K to the melting point. The temperature dependence of thermodynamic and thermophysical parameters is described using the extended Einstein model. The resulting equation of state describes well the entire volume of experimental data within the measurement error of individual quantities.

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