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

Table 6

Values of variables used to disturb the – locations (cm) of the NiCrAlY and the ZrO₂ particles.

Parameters	u b (cm/s)	u a1 (cm/s)	u a2 (cm/s)	u a3 (cm/s)	u a4 (cm/s)	u a5 (cm/s)	ω 1P (rad/(ms))	ω 2P (rad/(ms))	ω 3P (rad/(ms))	ω 4P (rad/(ms))	ω 5P (rad/(ms))
Mean, μ	0.8	0	0	0	0	0	0.5	0.5	0.5	0.5	0.5
S.D., σ	0.001	0.001	0.001	0.001	0.001	0.001	0.02	0.02	0.02	0.02	0.02
Single injection system using the NiCrAlY powder
Sample 1	0.79	−0.031	0.073	0.022	−0.058	−0.011	0.66	0.39	0.37	0.53	0.31
Sample 2	0.82	−0.009	0.003	0.004	0.013	0	0.42	0.5	0.84	0.31	0.65
Sample 3	0.76	−0.001	−0.056	−0.031	0	−0.001	0.46	0.76	0.51	0.55	0.57
Sample 4	0.78	0.038	0.014	−0.082	−0.019	−0.041	0.74	0.45	0.62	0.44	0.58
Sample 5	0.85	−0.049	−0.032	0.042	−0.014	0.032	0.5	0.5	0.44	0.48	0.45
Sample 6	0.81	0.044	−0.008	0	0.031	-0.025	0.33	0.37	0.5	0.34	0.51
Sample 7	0.8	0.002	0.017	−0.014	−0.033	−0.035	0.53	0.31	0.58	0.63	0.47
Sample 8	0.76	0.026	−0.001	0.036	−0.006	0.015	0.61	0.55	0.56	0.58	0.38
Sample 9	0.79	0.009	−0.021	−0.018	0.042	0.071	0.57	0.61	0.42	0.43	0.4
Sample 10	0.83	−0.022	0.035	0.012	0.025	0.022	0.27	0.64	0.22	0.71	0.73
Single injection system using the ZrO2 powder
Sample 1	0.74	0.045	−0.024	0.011	0.032	−0.006	0.71	0.53	0.57	0.67	0.47
Sample 2	0.78	−0.006	0.011	−0.032	−0.029	−0.050	0.66	0.61	0.65	0.41	0.80
Sample 3	0.83	0.007	−0.049	−0.017	−0.026	0.031	0.55	0.37	0.72	0.44	0.61
Sample 4	0.82	−0.030	0.042	−0.001	−0.002	0.048	0.58	0.21	0.62	0.71	0.52
Sample 5	0.79	−0.010	0.041	−0.061	0.019	0.011	0.41	0.55	0.36	0.26	0.45
Sample 6	0.77	0.011	0.022	0.033	−0.010	−0.013	0.34	0.39	0.43	0.53	0.66
Sample 7	0.78	−0.068	−0.032	0.007	0.060	0.000	0.22	0.49	0.40	0.59	0.30
Sample 8	0.81	0.035	0.004	0.058	0.016	−0.029	0.48	0.77	0.50	0.37	0.54
Sample 9	0.85	−0.023	−0.008	−0.015	−0.061	−0.022	0.43	0.43	0.28	0.50	0.37
Sample 10	0.81	0.020	−0.003	0.025	0.003	0.024	0.53	0.64	0.53	0.57	0.40