In recent years the Solution/Suspension Plasma Spray deposition technique has been used to obtain coatings with a wide variety of potential applications. There are several advantages related to this technique when compared with the use of the conventional atmospheric plasma spray deposition technique to produce ceramic coatings. Two of these advantages are the formation of nanometer/sub-micrometer features in the coating microstructure and the relatively inexpensive feedstock materials used to obtain the coatings.

This work explores the suitability of solution/suspension plasma spray to deposit titanium dioxide and barium titanate coatings. The photocatalytic properties of titanium dioxide and dielectric properties of barium titanate coatings are related to the microstructure and the crystalline phases present in the coating and correlated with the spraying parameters used during the deposition.