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

Table 5

Values of variables used for disturbing the injection velocities (cm/s) 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	1100	0	0	0	0	0	0.5	0.5	0.5	0.5	0.5
S.D., σ	2500	2500	2500	2500	2500	2500	0.02	0.02	0.02	0.02	0.02
Single injection system using the NiCrAlY powder
Sample 1	1075	66.5	−25.3	10.5	−44.9	15.0	0.39	0.32	0.75	0.63	0.49
Sample 2	1072	−29.9	29.8	34.2	−21.4	−64.0	0.51	0.40	0.37	0.36	0.39
Sample 3	1098	49.4	7.8	−26.4	30.8	−1.0	0.35	0.52	0.67	0.42	0.06
Sample 4	1197	19.6	18.4	55.5	46.8	−32.8	0.49	0.59	0.47	0.43	0.59
Sample 5	1129	36.1	−1.0	−69.0	84.7	40.2	0.67	0.49	0.52	0.50	0.33
Sample 6	1028	−10.5	62.6	−10.0	−27.4	−133.4	0.72	0.71	0.43	0.49	0.55
Sample 7	1146	−86.7	−52.5	−16.7	23.0	−12.7	0.45	0.44	0.56	0.59	0.53
Sample 8	1123	5.7	−38.3	18.9	−119.0	2.8	0.62	0.36	0.39	0.56	0.79
Sample 9	1047	−45.7	71.7	79.1	−3.3	51.0	0.24	0.56	0.60	0.22	0.67
Sample 10	1108	−16.4	−68.0	−54.1	2.2	68.0	0.56	0.66	0.21	0.70	0.44
Single injection system using the ZrO2 powder
Sample 1	1082	−17.3	28.5	−61.5	−71.0	43.4	0.53	0.55	0.55	0.42	0.40
Sample 2	1092	19.1	−19.9	59.5	61.0	21.7	0.64	0.31	0.53	0.62	0.59
Sample 3	1129	2.3	−35.7	38.1	22.6	34.9	0.48	0.37	0.65	0.50	0.46
Sample 4	1220	−58.6	−53.7	−18.4	−18.0	−19.4	0.57	0.68	0.43	0.38	0.54
Sample 5	1114	75.9	−2.6	93.2	−7.5	−1.1	0.25	0.44	0.33	0.53	0.47
Sample 6	1146	35.7	−73.8	13.7	9.3	−30.1	0.45	0.53	0.77	0.30	0.08
Sample 7	1018	−38.8	83.7	−5.4	32.1	70.2	0.42	0.73	0.30	0.44	0.33
Sample 8	1107	−6.7	58.0	10.3	−37.1	-64.9	0.73	0.48	0.40	0.55	0.63
Sample 9	1068	51.6	1.6	−29.5	85.4	8.9	0.61	0.42	0.60	0.79	0.71
Sample 10	1052	−125.3	23.5	−143.7	−44.2	−57.0	0.37	0.59	0.49	0.58	0.53