초록 |
Bulk nanostructured materials offer tremendous opportunity for re-inventing materials, but also pose many challenges both in terms of characterization, design, processing, and scaling. This talk will present recent work developing nanoengineered hierarchical advanced composites with enhanced mechanical properties, with a focus on imparting multifunctionality. For example, out-of-oven (OoO) composite manufacturing approach utilizes conductive heating from nanostructured CNT films to conductively, rather than convectively, heating the composite, resulting in 2-3 orders of magnitude reduction in required energy, and opens up new possibilities in areas such as cure sensing. Recent work has also shown that autoclave-required prepregs can be cured without autoclave pressure by utilizing nanoporous networks (NPNs) to provide capillary pressure at ply interfaces, leading to autoclave-quality aerospace-grade composites sans an autoclave, and sans an oven, when combined with OoO curing. |