Abstract There is a strong driving force to improve the production efficiency of thermal barrier coatings (TBCs) manufactured via air plasma spray (APS). To address this need, high-enthalpy APS torch Axial III Plus was employed successfully manufacture TBCs by spraying commercial YSZ feedstock at powder feed rate 100 g/min using an optimized set N 2 /H parameters; which yielded impressive depos...

The abradable coating is one of the most important coatings for improving efficiency aeroengine. To improve durability Sc 2 O 3 -Y -ZrO -CaF -PHB under conditions high temperature thermal shock, femtosecond laser processing technology proposed to fabricate texture on surface SiC f /SiC composites coating/matrix contact area. environmental barrier (EBC) was prepared by vacuum plasma spraying (VP...

Abstract In plasma spraying, compared to other thermal spraying process variants, only a small part of the available energy is used build up coating. Another peculiarity this relatively strong oxidation sprayed metallic particles, caused by high temperatures and turbulent flow jet in combination with ambient air. A promising solution for increasing efficiency solid shroud that surrounds thus pr...

Abstract Yttria-stabilized zirconia (YSZ) coatings and Al 2 O 3 -YSZ were prepared by atmospheric plasma spraying (APS). Their microstructural changes during thermal cycling investigated via scanning electron microscopy (SEM) equipped with backscatter diffraction (EBSD) X-ray (XRD). It was found that the microstructure of two different, including crystallinity, grain orientation, phase, phase t...

In the present study NiCrAlY bond coating layer was produced by electroplating against common atmospheric plasma spraying (APS). Both types of the bond coats were applied on IN738LC base metal then, the YSZ (ZrO2-8% Y2O3) thermal barrier top layer was coated by atmospheric plasma spray technique. Hot corrosion is one of the main destructive factors in thermal barrier coatings (TBCs) which come ...

Environmental barrier coatings are necessary to protect fibre reinforced ceramics from high recession rates in fast and hot water vapor-containing gases as they typically found the gas sections of turbines. A standard material SiC/SiC composites is atmospherically plasma sprayed (APS) Yb2Si2O7. For this material, it difficult obtain at reasonable substrate temperatures both low porosity crystal...

This paper describes the application of thermal spray techniques to produce resistance heating elements suitable for applying very large heat fluxes to solid surfaces. The surface to be heated is electrically insulated by deposition of a ceramic layer onto which a thin metallic layer is deposited; the metallic layer serves as the heating element. Each layer has a thickness in the range of 75 to...