Atomistic Investigation of Titanium Carbide Ti8C5 under Impact Loading

Titanium carbides attract attention from both academic and industry fields because of their intriguing mechanical properties proven potential as appealing candidates in the variety such nanomechanics, nanoelectronics, energy storage oil/water separation devices. A recent study revealed that presence Ti8C5 not only improves impact strength composites coatings, but also possesses significant strengthening performance an interlayer material by forming strong bonding between different matrices, which sheds light on design protection composite materials. To further investigate resistance mechanism Ti8C5, a pilot Molecular Dynamics (MD) utilizing comb3 is carried out nanosheet subjecting it to hypervelocity impacts. The deformation behaviour related resist mechanisms are assessed this research. At low velocity ~0.5 km/s, main resonance frequency 11.9 GHz its Q factor (111.9) indicates decent damping capability, would eliminate received interfacial reflection process weaken shock waves for strengthened composites. As increases above threshold 1.8 demonstrates brittle behaviour, signified insignificant out-of-plane prior crack initiation. When tracking atomic Von Mises stress distribution, elastic wave propagation calculated be 5.34 5.90 km/s X Y directions, respectively. These figures inferior compared with graphene copper, indicate slower delocalization rates thus less dissipation via expected bond break. However, relatively small mass density comparing presents superior specific penetration. This provides fundamental understanding penetration titanium carbide nanosheets under impact, crucial order facilitate emerging applications carbide-related