MR&D's core business is design and thermal-structural analysis of high temperature composite and refractory materials. The fundamental technology and design tools developed in this SBIR program will allow us to expand our client base and offer more capabilities to our existing customers. Additionally, the technology developed here will be translated to other commercial and government applications to expand the market for refractory coatings/liners on lightweight support structures in rocket nozzles, leading edges, hypersonic airframes and ramjet engines. The results of this refractory coated or lined low density structures study will additionally have broad ranging applications in civil aerospace, governmental aerospace companies, as well as aircraft jet engine manufactures and power generation equipment manufacturing companies. Potential customers include Boeing, Lockheed Martin, General Electric Power Systems and ATK-Thiokol. The results of this refractory coated or lined low density structures study will be applicable to all four of the NASA Fundamental Aeronautics Programs research thrust. Specifically, the fundamental technology and design tools developed in this Phase I effort can be expanding for design and analysis techniques/procedures for various high temperature material components such as rocket nozzles, leading edges, hypersonic airframes and ramjet engines.