ME 440 Aerospace Engineering Fundamentals Hot Topic of the Week.

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Presentation transcript:

ME 440 Aerospace Engineering Fundamentals Hot Topic of the Week

Use of Composite Materials in Propulsion Systems

What part do composites play in things like thrust reversers and nozzle equipment? -- Keith

Composite Materials Consists of two materials (constituents) Matrix (Binder) and Reinforcement This blend gives composite materials their unique and designable properties

Advantages of Composite Materials Stronger and stiffer than metals on a density basis Capable of high continuous operating temperatures Highly corrosion resistant Tailorable thermal expansion properties Tunable energy management characteristics Outstanding durability Low Observable

NASA Advanced High Temperature Engine Materials Technology Program (HITEMP) Goal: Providing revolutionary high- temperature composite materials

Types of Composites Polymer-Matrix Composites (PMCs): 425°C Metal-Matrix / Intermetallic-Matrix Composites (MMCs / IMCs): 1250°C Ceramic-Matrix Composites (CMCs): 1650°C

Applications Under Development CMC’s for turbine inlet PMC’s General Electric`s F-404 engine Turbine Blades

Still a Lot of Work To Do Material Development Application Specification