Controlling particle state is important to not only achieve the required microstructure and
properties in coatings but also to clearly isolate and understand the role of other clusters of …

This paper is the continuation of previous work,[1] in which plasma fluctuations were shown
to produce significant time-dependent variations in the in-flight particle temperature and …

Using laser anemometry, laser fluxmetry, and statistical two-color pyrometry, the velocity,
number flux, and surface temperature distributions of alumina and zirconia particles in dc …

External injection of high-melting point low thermal conductivity ceramics orthogonal to a
typical direct current thermal plasma jet plays a vital role in determining the in-flight state of …

The plasma-spray process features complex plasma-particle interactions that can result in
process variations that limit process repeatability and coating performance. This paper …

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 …

The plasma spray process with solid feedstock, mainly ceramics powders, studied since the
sixties is now a mature technology. The plasma jet and particle in-flight characterizations are …

The motion and heating of feedstock particles in the jet during plasma spraying have been
simulated using a theoretical model based on a CFD code. The main parameters affecting …

This paper presents a numerical simulation of the plasma-spraying of alumina particles. The
first section deals with the coating formation. The latter is governed by various time-scales …

The wear state of the different gun parts can affect the reproducibility of the plasma spray
process. Indeed, this may influence the plasma characteristics and the energy transfer to the …