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Article
Electrical Resistivity of ε-Fe at High Pressures of Stepwise Shock Compression
Abstract—In situ electrical resistance measurements are performed on samples of iron with a hexagonal close–packed lattice (ε-Fe), compressed and heated by stepwise shock loading. Equations of state for ε-Fe are ...
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Article
Shock-Wave Loading and Spall Fracture of Textured Tungsten Samples: Experiment and Simulation
The microstructural characteristics of original textured tungsten samples are certified. The free surface velocities of the samples were measured in shock-wave experiments. The dynamic yield strength and spall...
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Article
Physicochemical Transformations of Boron Carbide at High Temperatures and High Pressures of Shock Compression
Experiments were carried out on multiple shock wave compression and subsequent storage of powdered samples of boron carbide. The samples were subjected to the stepwise shock compression. Steel-tungsten capsule...
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Article
Equations of State of Muscovite at High Pressures and High Temperatures
Abstract—The paper attempts to build equations of state of muscovite in the region of high pressures and high temperatures. This problem is solved by reconstructing the free energy of the crystalline and amorphou...
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Article
The Volume–Temperature Dependence of Electrical and Thermophysical Properties of α Iron under High Pressures and Temperatures
We present a modification of the semiempirical description of the volume–temperature dependences of the electrical and thermal conductivities of α iron that has a body-centered cubic lattice. We consider an in...
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Article
Magnetic Transformations and Polymorphic Transition of Ferromagnetic Steels under Shock-Wave Loading
A method for recording magnetic transformation is presented for ferromagnetic steels under shock-wave loading. The operation of the magnetic transformation gauge is considered under shock-wave loading at the p...
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Article
Melting of Shocked Boron Carbide
The aim of this work is to determine the melting temperature of boron carbide at high shock pressures. To this end, powder boron carbide samples have been compressed by shock waves with an amplitude of 60–80 G...
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Article
Densification of Crystalline Boron Carbide during Shock-Wave Loading
Crystalline powder boron carbide samples are subjected to explosive loading by 2-μs shock waves with an amplitude of 38 GPa and shock heating to 700 K and to subsequent conservation. The samples recovered afte...
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Article
Spall Strength of Shock-Heated Zirconium and Phase Diagram of Its High-Pressure Polymorphic Modification
Spall strength of zirconium heated by a strong shock wave to thousand-degree temperatures and that underwent transformations into denser polymorphic modifications was determined. Pressure profiles at the sampl...
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Article
Spall Strength of Shock-Heated Hafnium and the Equation of State of Its Polymorphic Modifications
We determined the spall strength of hafnium heated by a loading shock wave to thousands of degrees and subjected to transformations into denser polymorphic modifications. To achieve this goal, the following ta...
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Article
Spall Strength of Amorphous Carbon (Glassy Carbon) under Shock Loading in the Region of Its Anomalous Compressibility
The spall strength of SU-2000 amorphous glassy carbon has been studied in two series of shock experiments. The one-dimensional shock loading of samples has been performed by the impact of flat impactors. The p...
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Article
The Spall Strength and Dynamic Yield Stress of Hafnium
The spall strength and dynamic yield stress of polycrystalline hafnium have been measured in a series of plane-wave shock loading experiments using flat sample–transparent window composite targets, with the tr...
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Article
Amorphization and a Polymorphic Transformation of Boron Stimulated by High Dynamic Pressures
Structural transformations of polycrystalline boron have been studied under megabar multiple-shock compression. Shock-wave experiments on the compression and subsequent recovery of polycrystalline samples of β...
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Article
Structural Transformations of Amorphous Carbon (Glassy Carbon) at High Shock Pressures
Amorphous carbon (glassy carbon) samples were shock compressed up to 80 GPa and temperatures up to 1700 K for several microseconds. Glassy carbon samples before and after an explosive action are analyzed by X-...
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Article
Semiempirical description of thermophysical properties of lithium deuteride at high pressures and temperatures
The semiempirical expression of the free energy of lithium deuteride in the form of an analytical function of volume and temperature for the pressure range of 0–100 GPa and at 200–2000 K was developed. The the...
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Article
Electrical conductivity and equations of states of β-rhombohedral boron in the megabar dynamic pressure range
The pressure dependence of the conductivity of boron under conditions of a stepwise shock compression of megabaric range is studied. With this purpose, the following problems have been solved. The conductivity...
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Article
Equations of state and melting curve of boron carbide in the high-pressure range of shock compression
We have constructed the equations of state for crystalline boron carbide B11C (C–B–C) and its melt under high dynamic and static pressures. A kink on the shock adiabat for boron carbide has been revealed in the p...
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Article
Equation of state of quartz glass and cerium in their abnormal compressibility range
In this work, the semiempirical equation of state of quartz glass and polycrystalline γ-cerium are plotted and verified at the compressive pressures to 3 GPa. The proposed equations are shown to uniformly desc...
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Article
Shock-wave-induced grain refinement and phase state modification in coarse-grained and nanocrystalline titanium
We have experimentally studied the structure and phase variations in polycrystalline titanium stimulated by stepwise shock compression at pressures up to 40 GPa with subsequent unloading. The experiments were ...
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Article
Shock-wave studies of anomalous compressibility of glassy carbon
The physico-mechanical properties of amorphous glassy carbon are investigated under shock compression up to 10 GPa. Experiments are carried out on the continuous recording of the mass velocity of compression p...
