Flexible TPS

The Physical Sciences Inc. (PSI) Team will develop ultrathin (0.015”) carbon fiber reinforced, silicon carbide matrix (C/SiC) materials to construct flexible thermal protection system (TPS) structures. The natural oxidation resistance of C/SiC makes these flexible structures suitable for use as control surfaces or morphing ducts for hypersonic vehicles. The key innovation developed by PSI to make repeatable thin C/SiC structures possible is a shape stable matrix. The thin C/SiC sheets are reinforced by unidirectional tapes in a simple 0-90 scheme. During the Phase I program we will fabricate thin C/SiC sheets and demonstrate their ability to bend about a 12” radius of curvature. We will assemble a set of eight thin sheets and show that the stack can be actuated about a 12” radius of curvature and that the thermal performance of the assembly is within 25% of a monolithic C/SiC structure. Our Team will work with the government and vehicle integrators to identify an application for the flexible structures for prototype development during Phase II. The Physical Sciences Inc. (PSI) Team will develop ultrathin (0.015”) carbon fiber reinforced, silicon carbide matrix (C/SiC) materials to construct flexible thermal protection system (TPS) structures. The natural oxidation resistance of C/SiC makes these flexible structures suitable for use as control surfaces or morphing ducts for hypersonic vehicles. The key innovation developed by PSI to make repeatable thin C/SiC structures possible is a shape stable matrix. The thin C/SiC sheets are reinforced by unidirectional tapes in a simple 0-90 scheme. During the Phase I program we will fabricate thin C/SiC sheets and demonstrate their ability to bend about a 12” radius of curvature. We will assemble a set of eight thin sheets and show that the stack can be actuated about a 12” radius of curvature and that the thermal performance of the assembly is within 25% of a monolithic C/SiC structure. Our Team will work with the government and vehicle integrators to identify an application for the flexible structures for prototype development during Phase II. Approved for Public Release | 20-MDA-10643 (3 Dec 20)