Recently, the experimental reports on near room temperature superconductivity of polyhydrides have attracted great attentions, and the theoretical and experimental exploration of new hydrogen-rich superconductors have become a research hotspot in the field of superconductivity. In this paper, we wil...

Since the discovery of superconductivity by the famous physicist Onnes in 1911, people have constantly tried to improve the superconducting transition temperature, and the room-temperature superconductors have also been a century-old dream of human beings. In the course of nearly a hundred years of ...

Since the discovery of 4.2 K superconductivity in mercury, the search for room-temperature superconductivity has been a hot topic in the field of condensed matter physics. In recent years, scientists have discovered a series of high-temperature superconductivity, represented by covalent H₃S (superco...

The 3d transition metal dichalcogenide MX₂ (M=Mn, Fe, Co, Ni, Cu, Zn; X=S, Se, Te) with pyrite structure has attracted widespread attention due to their novel physical properties. Among them, the CuX₂ (X=S, Se, and Te) is the only known superconducting system, for which the superconducting transitio...

Hydrogen has the simplest crystal structure and physical properties at ambient pressure. As the pressure increases, hydrogen undergoes phase transition from insulator to metal, which being called metallic hydrogen. The numerical calculations also indicate that metallic hydrogen has high-temperature ...

Using first principles density functional theory calculations, the crystal structure, electronic properties, and superconductivity characteristics of the ternary hydride Y-Si-H system under high pressure were investigated. The study revealed the existence of thermodynamically stable phases, includin...

In this work, we have performed extensive swarm-intelligence structures searching simulations on the RbBSi compounds within the pressure range from 0 to 100 GPa. We have proposed three different phases of RbBSi, of which the stability, the electronic structure and the potential superconductivity wer...

Recently, a large number of theoretical and experimental studies have reported the emergence of a new sp³ clathrate XB₃C₃, where X represents different metal doping elements. The potential high-temperature superconducting materials have been discovered. New-typical cage material with both strong cov...

Rare-earth metal superhydrides have attracted much attention because of their high-temperature superconductivity. Since experimental measurements can only determine the structures of rare-earth metal atoms in the superhydrides, first-principles calculations have become an important complementary met...

The study on damage and fracture of superconducting Nb₃Sn under cyclic loading is an indispensable part of understanding the origin of the irreversible strain limit in Nb₃Sn. This paper uses molecular dynamics simulation to investigate the fracture and deformation damage behavior of polycrystalline ...

The curved steel-concrete-steel composite structure is a sandwiched structural member, consisting of two curved steel plates and concrete core. Headed studs are used to connect the steel plates and concrete to achieve the composite effect. This type of structure is promising for improving earthquake...

Zr-based amorphous fragment is an emerging active and efficient destructive element, which will undergo a deflagration reaction and fragmentation when its impact velocity reaches its threshold. The deflagration reaction and fragmentation could greatly increase its behind-armor destructive capability...

In order to study the effect of charge size on the cook-off characteristics of pressed charges, the calculation model of cook-off process was established for HMX-based pressed charges. The cook-off bombs with different charge sizes were simulated by Fluent software, the effect of charge size on the ...

In order to investigate the propagation characteristics and thermal shock dynamics of multiple explosive sources gas explosion in complex roadways, numerical simulations were conducted using the Fluent software under three types of dual explosive sources arrangements in the H-type tunnel, including ...

Local compression of lithium-ion battery (LIB) is the primary form of damage during automotive collisions. In order to investigate the safety performance of 18650 LIBs under local indentation, a custom-made mechanical abuse experimental platform was used to conduct local indentation experiments. The...

To investigate effects of precise millisecond time delay detonation on the layered blasting in a single well completion, the millisecond time between holes within the layer was determined by theoretical calculation, and the JH-2 rock model was used in LS-DYNA software to simulate the precise delayed...