Ballistic characteristic of SiC nanofiber reinforced PI composite under high velocity impact

摘要

Silicon carbon (SiC) nanofiber was produced from carbon nanotube by Si-vapor infiltration, and used to prepare the SiC reinforced PI composite for ballistic plate. The ballistic characteristic of the resulting composite under high velocity projectile was studied. The results indicated that the ballistic properties of the composites were determined mainly by the volume percentage of SiC fibers and the thickness of the composite. The energy absorption was caused by the cracking of SiC fibers and PI matrix, the tensile destroy of fibers, the pulled-out of fibers and the distortion of projectile. The ballistic characteristic enhanced by adhering Kevlar woven fabrics on the composite surface with thermoplastic polypropylene (PE) resin.