P. Nylen et al., Investigation of particle in-flight characteristics during atmospheric plasma spraying of yttria stabilized ZrO2: Part 2. Modeling, J THERM SPR, 10(2), 2001, pp. 359-366
Yttria stabilized ZrO2 particle in-flight characteristics in an Ar-H-2 atmo
spheric plasma jet have been studied using analytical and experimental tech
niques. In the previous article,((1)) the primary gas flow, plasma composit
ion, current, and powder feed rate were systematically varied and particle
surface temperatures, velocities, and size distributions measured and stati
stically analyzed, In this paper, a mathematical model for the plasma flow
and particle characteristics is presented. Model predictions are compared w
ith the experimental results in Ref 1 and a reasonable correlation is found
. A statistical investigation (composite cubic face (CCF)) is performed on
the particle predictions, giving fast and simple relationships between gun
parameters and particle in-Right properties, The statistical and theoretica
l models that are presented here combine to form a powerful and cost-effect
ive tool, which can be used in the evaluation and optimization of spray par
ameters off-line.