Gregory GEMEINHARDT

Chief Consulting Engineer, Composite Materials · GE Aerospace · company speakers →

GE Aerospace has been a pioneer in the use of advanced composites to improve jet engine performance, durability, and efficiency. In fan systems, carbon fiber composite fan blades and cases—first proven on the GE90 and advanced on the GEnx and GE9X—deliver significant weight reduction while maintaining exceptional strength and impact resistance, contributing to lower fuel burn and quieter operation. Inside the hot section, ceramic matrix composites (CMCs) enable components such as shrouds, nozzles, and combustor/HP turbine parts to withstand much higher temperatures than metallic alloys at a fraction of the weight, allowing higher operating temperatures, improved thermal efficiency, and reduced cooling air requirements. Critically, each engine zone—fan, compressor, and turbine—presents unique mechanical, thermal, and environmental challenges that composites must address to ensure a viable, balanced design across the whole propulsion system. Combined, these composite technologies support better thrust-to-weight ratios, lower emissions, and improved reliability, helping airlines reduce operating costs and environmental footprint while advancing propulsion capability for today’s and next-generation engines.

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