Delayed failure of TBCs is a widely observed laboratory phenomenon, although many of the early observations went unreported. “The weekend effect” or “DeskTop Spallation” (DTS) is characterized by initial survival of a TBC after accelerated laboratory thermal cycling, followed by failure when exposed to ambient humidity or water. Once initiated, failure can progress to completion quite dramatically in less than a second. To this end, the water drop test and digital video recordings have become useful techniques in studies at NASA (Smialek, Zhu, Cuy), DECHMA (Rudolphi, Renusch, Schütze), and CNRS Toulouse/SNECMA (Déneux, Cadoret, Hervier, Monceau). In the present study the results for a commercial turbine blade, with a standard EB-PVD 7YSZ TB...
Thermal barrier coatings (TBCs) for land-based gas turbines are primarily thermally sprayed and are ...
Reliable life prediction models for the durability of thermal barrier coatings require the identific...
It is consensus that local spallation failures in thermal barrier coatings (TBCs) are determined syn...
Delayed failure of TBCs is a widely observed laboratory phenomenon, although many of the early obser...
The effect of water and water vapor on the lifetime of Ni-based superalloy samples coated with a typ...
PVD TBC coatings were thermally cycled to near-failure at 1150 C. Normal failure occurred after 200 ...
Thermal expansion mismatch stresses and interfacial sulfur activity are the major factors producing ...
Moisture-induced delayed spallation (MIDS) of protective alumina scales at room temperature is a wel...
While interfacial sulfur is the primary chemical factor affecting Al2O3 scale adhesion, moisture-ind...
Laboratory experiments were conducted to study the spallation behaviour of thermal barrier coatings ...
During service, TBC can suffer degradation by CMAS, FOD, erosion or spallation. Whereas the first th...
The effects of coating TBC on a CF6-50 stage 2 high-pressure turbine blade were analyzed with respec...
During rapid engine throttling operations, turbine airfoils can experience very rapid heating and co...
Multilayer thermal barrier coating (TBC) systems typically consist of three layers of materials: A t...
While interfacial sulfur is the primary chemical factor affecting Al2O3 scale adhesion, moisture-ind...
Thermal barrier coatings (TBCs) for land-based gas turbines are primarily thermally sprayed and are ...
Reliable life prediction models for the durability of thermal barrier coatings require the identific...
It is consensus that local spallation failures in thermal barrier coatings (TBCs) are determined syn...
Delayed failure of TBCs is a widely observed laboratory phenomenon, although many of the early obser...
The effect of water and water vapor on the lifetime of Ni-based superalloy samples coated with a typ...
PVD TBC coatings were thermally cycled to near-failure at 1150 C. Normal failure occurred after 200 ...
Thermal expansion mismatch stresses and interfacial sulfur activity are the major factors producing ...
Moisture-induced delayed spallation (MIDS) of protective alumina scales at room temperature is a wel...
While interfacial sulfur is the primary chemical factor affecting Al2O3 scale adhesion, moisture-ind...
Laboratory experiments were conducted to study the spallation behaviour of thermal barrier coatings ...
During service, TBC can suffer degradation by CMAS, FOD, erosion or spallation. Whereas the first th...
The effects of coating TBC on a CF6-50 stage 2 high-pressure turbine blade were analyzed with respec...
During rapid engine throttling operations, turbine airfoils can experience very rapid heating and co...
Multilayer thermal barrier coating (TBC) systems typically consist of three layers of materials: A t...
While interfacial sulfur is the primary chemical factor affecting Al2O3 scale adhesion, moisture-ind...
Thermal barrier coatings (TBCs) for land-based gas turbines are primarily thermally sprayed and are ...
Reliable life prediction models for the durability of thermal barrier coatings require the identific...
It is consensus that local spallation failures in thermal barrier coatings (TBCs) are determined syn...