Application of W/Zr amorphous alloy for shaped charge liner

Abstract

Liner is an important component of shaped charge. This paper innovatively presents a composite liner containing a frustum in W-particle/Zr-based amorphous alloys (W/Zr amorphous alloy) and a spherical segment in copper, through theoretical analysis, numerical simulation and static-blast experiments. The microscopic morphology of the hole wall was studied by scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), micro-area x-ray diffractometry (XRD) and micro-hardness tester. Results indicate that: the forming mechanism of the composite liner given by theoretical calculation and numerical simulation is in accordance with the experimental results, and the composite liner forms follow-through jets; the W/Zr amorphous alloy undergoes phase change and chemical reaction after impacting the target plate, releasing energy, and amorphous phase residues were also found; the W/Zr amorphous alloy has a strong thermal effect on the target plate, forming an aftereffect overpressure apparently higher than that of the copper liner with the same structure, and has a strong penetration ability. Therefore, the W/Zr amorphous alloy is an energetic material with application potentials.