| Abstract Scope |
Thermal protective systems for hypersonic vehicles needs to survive large heat fluxes, extreme temperatures, extensive thermal gradients, stagnation pressures and oxidative environments. They also need to show minimal material ablation and overall weight, with complex shapes. Although outstanding development has been achieved over the past 20 years for UHTCs, the state-of-art manufacturing and design still revolves around solid microstructures as heat sinks for leading edges. Recent advances in manufacturing paved the way for exploring different UHTC microstructures that could lead to other heat management strategies. In this talk, innovative colloidal processing approaches will be discussed to introduce controlled porosity, textured microstructures and high aspect ratio building blocks for UHTCs, to tailor thermomechanical response in different directions within the same component, and enable innovative active and passive cooling strategies. The manufacturing approaches discussed present a cost-effective emphasis to achieve that complexity with minimum additives, forces, low temperatures and number of steps |