Adaptive Control of the Atmospheric Plasma Spray Process for Functionally Graded Thermal Barrier Coatings

Figure 4

Computed instantaneous distributions (at  = 5 ms after the start of the injection of particles) of the NiCrAlY (red color) and the ZrO₂ (blue color) particles in the yz-plane and the xz-plane: (a) (b) present results, (c) (d) Wan et al.’s results. In both cases, the NiCrAlY and the ZrO₂ injectors are located at (10, 8) mm and (6, 8) mm, respectively. Particles injected at the same injection velocity of 11.7 m/s and the carrier gas flow rate of 5 slm and are collected in the observation window, 9.9 10.1 cm.

(a)

(b)

(c)

(d)