Low Cost, Self-Healing EBCs Based on Al- and Zr- Modified Polysilazanes Navy SBIR FY2009.1 Sol No.: Navy SBIR FY2009.1 Topic No.: N091-020 Topic Title: Low Cost, Self-Healing EBCs Based on Al- and Zr- Modified Polysilazanes Proposal No.: N091-020-1117 Firm: KION defense Technologies Inc 1957A Pioneer Rd Huntingdon Valley, Pennsylvania 19006 Contact: Frank Kuchinski Phone: (215) 682-2060 Web Site: www.kiondefense.com Abstract: Kion Defense Technologies, Inc. (KDT) has teamed with a composite producer and engine manufacturer to develop and demonstrate the effectiveness of a new Environmental Barrier Coating for SiC-based composites consisting of proven materials, but generated in a simple, lower cost manufacturing approach. KDT will employ its patented polysilazane resin manufacturing process to incorporate Al and Zr heteroatoms into its ceramic precursor (CERASETTM) resins to produce a multi-layer EBC consisting of a unique bond coat/topcoat system. This coating system will be compatible with the underlying composite, can function as a final cycle co-infiltrant in such a composite, and be applied with any simple coating methods, such as spray, dip, spin, or brush. Furthermore, it offers the ability for field repair of engine components on the aircraft. Benefits: The resultant Environmental Barrier Coating material can offer considerable cost savings in finished part cost due to the simplicity of the proposed manufacturing approach. Any improvements for military turbine engines have direct applicability for commericial aircraft engines as well as in ground-based power generation turbines. Return