in order to ensure the technological breakthrough, future aero-engines will have higher overall pressure ratios (OPR) to increase thermal efficiency and will have higher bypass ratios (BPR) to increase propulsive efficiency. These lead to smaller and hotter high pressure cores.
SP5 : Lightweight material to preserve from a significant mass increase. The work will focus on the development of the TiAl intermetallic alloys for low pressure component application. The use of TiAl in the engine is a major breakthrough in engine weight reduction. Technical gaps hindering the use of TiAl need to be assessed.
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