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Conference Papers Year : 2013

Potential of innovative ceramics for turbine applications.


Improving the thermal efficiency of aircraft gas turbines and of thermal power generation systems is of great interest for industry. Despite the various studies performed to increase their heat-resistance, the use of nickel-based superalloys at temperatures beyond 1150°C will be difficult. For higher temperatures, new high temperature structural materials are required. In this context, ceramics offer many advantages compared to Ni-based superalloys: a lower density and a better resistance to oxidation and abrasion. Two kinds of ceramics are investigated at Onera: Si3N4 based materials for use up to 1500°C and directionally solidified eutectic (DSE) ceramics up to 1700°C. For both materials improving toughness is a challenge. This paper presents the processing techniques, the microstructural features and the mechanical properties.
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hal-01057786 , version 1 (25-08-2014)


  • HAL Id : hal-01057786 , version 1


A. Jankoviak, R. Valle, M. Parlier. Potential of innovative ceramics for turbine applications.. ODAS, May 2013, PALAISEAU, France. ⟨hal-01057786⟩


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