A novel, technically simple imaging system for individual, in-flight particle temperature and
velocity measurements for plasma and other thermal spray processes is described. A …

Advances in digital imaging technology have enabled the development of sensors that can
measure the temperature and velocity of individual thermal spray particles over a large …

Real time close-up images of in-flight particles plasma sprayed onto a substrate and in
freestream condition (without substrate present) are captured. Besides the images, particle …

In-flight measurement of the surface temperature of plasma-sprayed particles is important for
the correlation of particle characteristics to coating structure and properties. However, the …

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 …

Suspension plasma spraying process, a relatively new deposition technique in thermal
spray coating, has been increasingly applied to deposit high-quality thermal barrier coatings …

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 …

A three-dimensional computational fluid dynamic (CFD) analysis using Fluent V5. 4 was
conducted on the in-flight particle behavior during the plasma spraying process with external …

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 …

The influence of arc root fluctuations in direct current (DC) plasma spraying on the physical
state of the particle jet is investigated by correlating individual in-flight particle temperature …