Pure and Fibre-Hybrid Carbon Fibre and Polypropylene Layer-to-Layer 3D Woven Composite Micrographs

Micrographs (employing fluorescent dye) of pure carbon fibre and fibre-hybrid carbon fibre and polypropylene layer-to-layer angle interlock 3D woven composites post-Charpy impact test. The blue colour indicates resin. The fluorescent green colour, produced by resin infusion after the impact tests, highlights the cracks (and the surroundings of the samples).