Abstract
Plasma-sprayed thermal barrier coatings (TBCs) have been widely used on stationary components in turbine engines. The thermal shock resistance of such coatings is usually limited by their typical lamellar structure. In this work, a segmented structure was induced in the plasma-sprayed yttria stabilized zirconia (YSZ) coatings by using a 'hot' spraying condition. The thermophysical properties, mechanical properties and thermal cycling behaviors and associated failure mechanism of the segmented TBCs were addressed. The segmented TBCs exhibited very promising potential in improving the thermal cycling lifetime as compared to traditional non-segmented TBCs.
| Original language | English |
|---|---|
| Title of host publication | Thermal Barrier Coatings |
| Publisher | Elsevier Ltd |
| Pages | 161-174 |
| Number of pages | 14 |
| ISBN (Print) | 9781845696580 |
| DOIs | |
| State | Published - Jan 2011 |
Keywords
- Plasma spray
- Segmentation cracks
- Thermal barrier coatings (TBCs)
- Thermal cycling
- Thermophysical property
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