Ternary ε-Fe_3-xM_xN_1+δ (M=Co, Ni) were synthesized as spherical bulk materials with variable components through composite high-pressure solid-state metathesis (HPSSM) reactions under 5GPa and at 1673K, employing diversity binary metal oxides (Fe₂O₃, CoO, NiO) and hBN as the reaction precursors.The st...

We investigated the effects of the roasting course on behaviors of the pyrophyllite gasket under high pressures using Bridgman anvils.The results show that high roasting temperature is beneficial to increase the critical thickness and enlarge the area of the elastic central region of pyrophyllite ga...

The research of shaped-charge penetrating concrete target focuses on the material and the structure of the shaped-charge, penetration depth and penetration aperture size, but seldom involves the destruction of a concrete target board.However, the determination of whose overall damage behavior plays ...

In order to find out about the static electric field energy-storaging characteristics of lead zirconate stannate titanate ceramics doped with lanthanum, PbLa(Zr, Sn, Ti)O₃ (PLZST) ceramics with different Sn/Zr ratios were fabricated using the conventional solid-state reaction of oxide method.The com...

Punching shear plays a very important role in assessing the load carrying capacities of connections between slabs and columns or slabs loaded by flat-faced punches, especially in the safety calculation and assessment of containment structures in nuclear power plants.For many years this has been exam...

Building constitutive models that include damage is the foundation for the research of dynamic mechanical responses of explosives.Based on the viscoelastic character on macroscale and the crack directions on mesoscale, we established a viscoelastic statistical crack mechanics including anisotropic d...

By using the dynamic finite element software LS-DYNA, we simulated the working process of a novel emulsion explosive pressure desensitization device, and investigated the characteristics of its flow field distribution and the influence of its structural design on the experimental results.The compari...

In the present work we investigated the ablation behavior of the Cu/diamond composite material under the current ranging from 100 to 300kA and the preload ranging from 0.4 to 2.0kN in the initial stage of the electromagnetic rail launch.The analysis reveals that, due to the dual function of the joul...

It is a big challenge for measuring the rapidly-increasing ejecta from the melted metal sample under intense shock loading.In this work, we experimentally investigated the ejecta mass, density and velocity distributions on a melted Sn target by adopting the Asay-F-window technique, and focused on th...

The nozzle is the core component of a hydraulic horizontal drilling equipment, and optimizing its structure is crucial for helping to improve the construction efficiency of exploiting low permeability oil and gas resources.Based on the computational fluid dynamics (CFD) approach, we studied the effe...

The plasma jet ignition technology has wide applications in aerospace, weapons and civilian industry.To explore the ignition properties of the plasma jet, we have conducted numerical simulation to study the characteristics of the near field of the transient plasma jet propagation in air, and have ob...

The quasi-isentropic compression technique of the liner in the Z-pinch can be used to study high pressure state equations of materials.In this research, we designed the quasi-isentropic compression load for PTS shot37 load currents through the MDSC magnetohydrodynamic code, with Al being the load ma...