|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Biological Materials Science
||K-3: Bio-inspired Impact Resistant Coatings
||Taige Hao, Wei Huang, Robin James, Paige Romero, Taifeng Wang, Devis Montroni, David Kisailus
|On-Site Speaker (Planned)
The mantis shrimp utilizes a coating comprised of bi-continuous hydroxyapatite nanoparticles and an organic matrix to localize damage and protect its dactyl club during high speed collisions (~10,000g acceleration) involved in its feeding activities. Although these coatings are very thin (~ 70μm), they offer significant protection under high strain rate impacts. In this work, a composite, impact resistant, coating comprised of silicon carbide nanoparticles within a polymer matrix was developed to mimic the biological coatings of the dactyl club. The degree of damping and energy dissipation can be tuned by changing the volume percent of particles, the ratio of stiffness between the particle and matrix, and the interface between the particle and matrix. These thin-film coatings localize damage and decrease penetration depth, thus improving the impact resistance of composite and brittle ceramic substrates. They could potentially be applied to structural materials in automotive and aerospace industries without adding significant weight.
||Biomaterials, Thin Films and Interfaces, Composites