The paper presents three innovative diagnostics for application to the plasma spraying
process. With plasma computer tomography, the plasma jet is investigated by recording its …

A necessary condition for the optimisation of plasma spraying processes is the capability to
measure plasma jet, particle and coating parameters. Of special interest is the measurement …

Powder injection parameters such as gas flow, injection angle, and injector position strongly
influence the particle beam and thus coating properties. The interaction of the injection …

The coating characteristics of plasma sprayed layers are strongly related to the spray
parameters and the gun design which also determine the state of the sprayed powder …

This paper shows how in-flight particle diagnostics can be used to optimize parameter sets
for new layer materials and to detect drift in the control of thermal spraying lines. It describes …

The quality of plasma sprayed coatings depends strongly on substrate surface preparation,
especially roughness, grit residue, and oxidation stage; particle spray jet position and size …

This paper presents what is our actual knowledge in the development of the on-line control
of the plasma spray process. First the influence of the different parameters on coating …

Instabilities and fluctuations of the plasma jet in a thermal spray process can have a
significant influence on the particle in-flight temperatures and velocities, affecting the …

The key phenomena controlling the properties of sprayed coatings are the heat and
momentum transfer between the plasma jet and the injected particles. Modern on-line …

Plasma spraying has become one of the most important thermal-spray technologies due to
low operating costs, high deposition rates, and a high efficiency. It is especially suitable for …