Intermediate Temperature Carbon/Carbon Structures

The main objective will be to optimize the benzoxazine resins and additives that were developed and tested during the Phase I program. The Phase II research will result in an increase in the oxidation resistant and strength and modulus so that these C/C composites will be suitable for many applications, especially as a replacement for titanium components in the 700 to 1200F temperature range. Materials and fabrication methods will be fine tuned for a reliable and cost efficient process. UDC will scale up the selected best material and processing method. Panels will be fabricated and tested. Comprehensive mechanical and thermal characterization will be performed to validate the appropriateness of the proposed chemical approaches and/or processing concepts to provide C/C structures with long term 700-1200°F use capability and maintain their structural properties for a minimum of 1000 hours. UDC will provide materials and process specifications for the innovative materials and processes. At the end of Phase II, UDC will provide a detailed report that will include all work performed, resultant data, specifications and a Phase III production plan.