Multi-Dimensional Reinforced Ceramic Matrix Composite Application to Advanced Pintle Operated DACS Systems

This program proposes to investigate and demonstrate novel composite material concepts for advanced divert and attitude control solid propulsion systems. Fiber Materials Inc. (FMI) teamed with ATK Elkton LLC, proposes to develop multi-directional reinforced ceramic matrix composite (CMC) material applicable to ATK's Block II SDACS, KEI, MKV, advanced PBCS and advanced Patriot reaction control system designs. In particular, development efforts will focus on the design of 3D CMC composite materials for application to pintle and throat components, currently manufactured from rhenium. These ceramic-based materials will offer equivalent structural properties coupled with lessened thermal conductivity and reduced mass. The materials will be engineered for use with systems operating in the 3700°F to 4200 °F temperature regime. The proposed CMC composites are one-tenth the density of rhenium and can be machined with conventional tooling. Phase I material assessments will be used as a basis for varying carbon fiber weave design and furthering process parameters as required to meet operational requirements, including internal pressure and thermal loading. The material will be affordable with potential to accommodate future valve requirements. During Phase II, final design analyses will support component manufacture, both for characterization and hot gas demonstration.