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View article: An investigation into the erosion and wear mechanisms observed in abradable ytterbium disilicate environmental barrier coatings
An investigation into the erosion and wear mechanisms observed in abradable ytterbium disilicate environmental barrier coatings Open
Abradable environmental barrier coatings (EBCs) are used to reduce clearances between blades and casings in the hottest parts of aero gas turbines, increasing the overall efficiency of the turbine, however, research into the mechanical per…
View article: Processing–Microstructure–Properties of Columns in Thermal Barrier Coatings: A Study of Thermo-Chemico-Mechanical Durability
Processing–Microstructure–Properties of Columns in Thermal Barrier Coatings: A Study of Thermo-Chemico-Mechanical Durability Open
Contemporary gas turbine engines rely on thermal barrier coatings (TBCs), which protect the structural components of the engine against degradation at extremely high operating temperatures (1300-1500 °C). The operational efficiencies of ai…
View article: Integrating APS TBCs with a built-in Al2O3 protection network for superior CMAS resistance
Integrating APS TBCs with a built-in Al2O3 protection network for superior CMAS resistance Open
Calcium–magnesium–alumina–silicate (CMAS) attack poses a great threat to the durability of thermal barrier coatings (TBCs). We introduce a novel Al2O3-modified TBC architecture to counter this threat. The architecture integrates an Al2O3 p…
View article: Unravelling the impact of CoNiCrAlY coating microstructure and composition on the formation of duplex oxide scales
Unravelling the impact of CoNiCrAlY coating microstructure and composition on the formation of duplex oxide scales Open
The formation process of Al2O3-based duplex oxide scales growing on high velocity oxygen fuel (HVOF) CoNiCrAlY alloy was investigated at 1135 oC. The dual-phase nature of the alloy originated a site-specific oxidation behaviour that facili…
View article: Atmospheric plasma spraying of ytterbium disilicate for abradable and environmental barrier coatings: A story of processing-microstructure relationships
Atmospheric plasma spraying of ytterbium disilicate for abradable and environmental barrier coatings: A story of processing-microstructure relationships Open
Environmental barrier coatings (EBCs) are required to protect SiC based composites in high temperature, steam containing combustion environments found in the latest generation of high efficiency gas turbine aeroengines. Ytterbium disilicat…