Abstract Instabilities and fluctuations of the plasma jet in a thermal spray process can have significant influence on particle in-flight temperatures velocities, affecting properties resulting plasma-sprayed coatings. Presented this paper is novel method for capturing effects particles are exposed to spraying process. High-speed camera images generated by cascaded three-cathode generator (Trip...

The paper investigates processes of composition selection, structure formation and properties new porous powder friction materials based on molybdenum ( Mo ), aluminum-iron bronze (БpAЖ( SiC )) or steel (40X13) obtained by plasma spraying. study can be used in the frictional devices transmissions tracked vehicles with a high specific power to increase tribotechnical, operational technological c...

This paper presents the coating thickness effect on the stress distribution of a coated cylinder head. A typical thermal barrier coating was applied on a diesel engine cylinder head. Thus, the residual stress which occurred during the plasma thermal spraying was also considered. The coating system consisted of two layers a metallic bond coat and a ceramic top coat. The bond coat thickness is co...

Numerous cracks can be observed in the top coat of thermal barrier coatings (TBCs) deposited by the atmospheric plasma spraying (APS) method. These cracks can be classified into vertical and horizontal ones and they have opposite impact on the properties of TBCs. Vertical cracks reduce the residual stress in the top coat and provide strain tolerance. On the contrary, horizontal cracks trigger d...

Nanostructured ceramic coatings produced by plasma spray processes are being developed for a wide variety of applications that require resistance to wear, erosion, cracking and spallation [1]. In addition the process is being developed to make near net shaped ceramic performs by dissolution of the substrate after spraying. Attractive properties associated with a nanostructure (in general referr...