Fraunhofer ISC, Center for High Temperature Materials and Design HTL, Bayreuth
The efficiency and thus the energy efficiency of aircraft gas turbines increases with the operating temperature. In this respect, ceramics with their high operating temperatures are fundamentally superior to the metal alloys that have been predominantly used to date. The lower density of ceramics also has an advantageous effect on fuel consumption. In the hot area of aircraft gas turbines, high mechanical and thermomechanical stresses prevail. Conventional monolithic ceramics do not have the necessary damage tolerance and thermal shock resistance. for use in this area. Fibre-reinforced ceramics (Ceramic Matrix Composites = CMC), on the other hand, can be equipped with a high fracture toughness - similar to metals. In aircraft gas turbines, CMC components are used, for example, as guide vanes or rotor blades, sealing segments or mixers in the exhaust gas jet.
Here you will find a selection of our research projects:
- Wero_Turb Materials and construction methods for robust turbine design
- TraTurb
CMC support structures in the hot gas section of gas turbines
- KerTWK Ceramics in the engine
- CMC-TurbAn CMC optimisation for turbine applications
- CMC-EngineLightweight structures made of SiC/SiC ceramics: key components for next-generation gas turbines
- CMC-COAS Quality assurance concept and definition of boundary conditions for the approval of components made of fibre-reinforced ceramics
- CMC-SiC Development of ceramic matrix composites from SiC fibres
These publications might interest you:
- Wet chemical deposition of BN, SiC and Si3N4 interphases on SiC fibers
- Oxide Ceramic Matrix Composites – Manufacturing, Machining, Properties and Industrial Applications
- Ceramic Matrix Composites – an Alternative for Challenging Construction Tasks
- Joining of Ceramic and Metal Parts
- Anforderungsgerechte textile Halbzeuge und Z-verstärkte Preformen für Hochleistungsfaserverbundkeramiken