Microstructural Investigation of Plasma Sprayed Ceramic Coatings Using Peridynamics

Microstructure and Microwave Absorption Properties of Flame Sprayed Ceramic Coatings

In this research work, airplane grade aluminum alloy substrate was coated by Al2O3/ TiO2 ceramic coatings in two different compositions as 50:50 and 87:13 using Flame spraying technique. The surface & cross-sectional morphological characterizations of the Al2O3/ TiO2 powders and coatings were performed by scanning electron microscopy (SEM). The microwave absorbing properties of coatings were ex...

Bond Strength of Plasma Sprayed Ceramic Coatings on the Phosphated Steels

P. Pokorny, L. Mastny, V. Sykora, Institute of Chemical Technology Prague, Czech Republic Z. Pala, V. Brozek, Institute of Plasma Physics ASCR v.v.i. Prague, Czech Republic In the presented work, results of adhesion measurements for different systems of steel sheet-phosphate interlayerceramic coating are described. The interlayers were produced by zinc phosphating; alumina, olivine and zirconia...

Corrosion Protection of Metallic Waste Packages Using Thermal Sprayed Ceramic Coatings

Ceramic coated carbon steel coupons were corrosion tested in water with dissolved salts to simulate exposure to evaporation concentrated groundwater in an underground nuclear repository. Metallography revealed no corrosion at the ceramic metal interface of dense coatings, even though electrical measurements demonstrated that the coatings were slightly porous. Experimental results and a model to...

Microstructure and Properties of Plasma Sprayed Nanostructural ZrO2 Coatings

Plasma sprayed zirconia deposits have been employed in wide applications for thermal protection. Recently, the use of nanostructural surface represents an alternative for improving the performance of these coatings. The present paper reviewed the works in this field at our research group, including synthesis of nanostructural ZrO2 powders, influence of spraying parameters on microstructure and ...

Failure analysis of suspension plasma sprayed thermal barrier coatings