Dislocation glide, deformation twinning, and phase transition are critical mechanisms
resulting in irreversible plastic deformations of materials. Because of the lack of dislocation …

Abstract The Hall-Petch and inverse Hall-Petch behaviors in nanocrystalline ceramics are
not well understood because dislocation activities, which are important in metals, are usually …

Nanotwinned metals exhibit enhanced strength due to the twin-boundary-dislocation
interaction, but nanotwins may play a different role in strong, yet brittle ceramics due to the …

Boron carbide (B 4 C) is superhard, but its engineering applications are limited by the
abnormal brittle failure arising from amorphous shear band formation. Mitigating the local …

Boron carbide (B4C) is a superhard material, whose wide engineering applications are
limited by its brittleness under impact. Doping various impurity elements into B4C may lead …

Boron carbide is considered as an ideal armor material, but its abnormal failure under high
speed impact hinders its application. In order to explore the compression deformation …

As an excellent material, the application of boron carbide (B 4 C) is limited by pressure-
induced amorphization. To understand the mechanism for amorphization in B 4 C, first …

The effects of carbon content on the mechanical properties and deformation mechanisms of
boron carbides were investigated by first-principles calculations, based on the density …

Grain boundary (GB) plays a significant role in the deformation behaviors of nanocrystalline
ceramics. Here, we investigate the compression behaviors of nanocrystalline boron carbide …

In this work, the kinetics of destruction of boron carbide subjected to mechanical loads was
studied based on molecular dynamics method using the reactive force field approach to …