Fig. 2: Hierarchical multifunctional composite construction.
From: Prolonged in situ self-healing in structural composites via thermo-reversible entanglement
a Overhead images of 3D printed serpentine patterns of EMAA thermoplastic (blue overlay) directly onto woven carbon-fiber reinforcement demonstrating both scalable (top) and precise (bottom) placement. b 3D x-ray computed microtomography (μCT) reconstruction of self-healing glass-fiber-reinforced composite. c Cross-section of laminated composite revealing EMAA melt-bonded to micro-fiber bundles (tows) and resistive heater interlayers containing a percolating network of electrically conductive carbon-whiskers (inset).
