By analyzing experimental data, we put forward the concept of the limit compression volume ratio and the general design principles of centimeter magnitude sample chamber for two-stage 6-8 type static high pressure apparatus.Based on the limit compression volume ratio, we designed an assembly of 36/2...

To study the pressure-specific volume (p-v) reference line and equation of state from the stress-strain curve of material at high pressure, the viscous dissipation due to loading strain rate and thermal dissipation due to irreversible heat conduction in quasi-isentropic compression experiment (ICE) ...

B₆O/TiB₂ composites were produced from B-TiO₂ mixtures using "one step reactive sintering method" at high pressures between 4 and 5 GPa.The highest Vicker's hardness is 29 GPa for samples consisting of amorphous B and TiO₂ (molar ratio:14.0:0.8).For samples consisting of crystal B and TiO₂ (molar ra...

A laval nozzle with a throat diameter of 2 mm and working current 100 mA was introduced, and on the basis of 2D rotational symmetry model, numerical simulation was taken for the plasma flow in and outside the plasma torch.By adoptting the magnetic vector potential magnetohydrodynamic (MHD) model for...

The dynamic evolution process and velocity field of two elliptic heavy-gas (SF₆) cylinders accelerated by a planar shock wave are studied by laser-sheet high-speed photograph and PIV (particle image velocimetry) diagnostics techniques, respectively.The minor axes (b) of the elliptic cross-sections a...

The phenomenon of gouging on the surface of the rail in the process of electromagnetic railgun launching was studied.For its launching characteristics, we proposed a formation mechanism of gouging due to oblique impact of small angle based on the actual structure and load characteristics of railguns...

To research the laws of spherical, cylindrical, and regular prismatic preformed fragments initiating uncovered explosives, we adopted Mathcad software and the u²d criterion of Held to do the theoretical calculation and analysis.Influences of the preformed fragments' quality, density, shape, length t...

In this study, the dispersion, cloud forming process and combustion explosion properties of diesel, combustion retardant diesel and explosion suppression diesel were investigated.A high-speed video camera system was employed to record the process of cloud forming, and an infrared thermal imaging sys...

Thermoelectric materials Ag_1-xPb₁₈SbTe₂₀ (x=0, 0.3, 0.6) were synthesized by high pressure method.The composition dependent electrical properties were studied from room temperature to 500 ℃.The result of X-ray diffraction indicates that Ag_1-xPb₁₈SbTe₂₀ samples have the structure of NaCl crystal.As A...

In this study, we choose different confining pressure materials, pressure transmitting WC-Co platforms and WC-Co wafers, to calibrate pressure of 10/4 (The edge length of octahedral transmitting pressure medium is 10 mm/the truncated angle edge length of WC-Co cemented carbide anvil is 4 mm) assembl...

Using density functional theory (DFT), the reaction of chlorine trifluoride oxide (ClF₃O) with propylene oxide (C₃H₆O) was studied.At the B3PW91/6-31++G(d, p) level, geometries of all species (reactants, transition states and products) were optimized, and the vibrational frequencies and zero point v...