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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)
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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