Helping Rolls-Royce plc improve jet engine efficiency

Narrative

Our research has enabled Rolls-Royce plc to better predict the performance of the thermal barrier coatings on their jet engine components. The coatings have helped boost engine performance and reduce fuel consumption.

Materials scientists at Manchester, led by Professor Ping Xiao, developed a stringent methodology of novel testing processes to accurately predict the mechanical, chemical and physical performance of TBCs across the lifetime of a commercial jet engine when subjected to high temperatures and mechanical loads. They developed tests focused on three key material characteristics:
• multidimensional residual stress;
• the strength of the interface between the TBC coating and the engine parts;
• interfacial adhesion.

Impact highlights
• This research significantly reduced the risk of Rolls-Royce plc introducing thermal barrier coatings (TBCs) onto key components of in-service engines.
• The introduction of TBCs has improved engine performance and allowed fuel consumption to be reduced.
• The ongoing research will enable the design of next-generation coatings crucial to future aeroplane performance and efficiency levels.

This work was summarised in a REF2021 impact case study. The case is not for publication

Impact date	1 Aug 2013 → 31 Jul 2020
Category of impact	Economic, Technological, Environmental
Impact level	Adoption