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

Table 2

Values of the coefficients of the response functions of the outputs in equation (20).

Output,	Number of samples
Single injection using NiCrAlY powder,
Mean axial velocity,	100	0.45	0.75	0.13	0.35	−0.59	−0.34	0.99
	200	0.38	0.66	0.13	0.36	−0.54	−0.31	0.99
	300	0.38	0.67	0.15	0.32	−0.54	−0.32	0.99
Number averaged z-locations of NiCrAlY,	100	0.71	0.48	0.06	0.23	−0.94	−0.13	0.99
	200	0.84	0.40	0.04	0.20	−0.85	−0.10	0.98
	300	0.77	0.42	0.06	0.19	−0.84	−0.10	0.98
Single injection using ZrO2 powder,
Mean axial velocity,	100	0.33	0.79	0.18	0.41	−0.42	−0.37	0.99
	200	0.28	0.61	0.15	0.34	−0.34	−0.28	0.98
	300	0.24	0.78	0.21	0.39	−0.42	−0.37	0.99
Number averaged z-locations of ZrO2,	100	0.72	0.49	0.06	0.24	−0.98	−0.10	0.99
	200	0.82	0.41	0.05	0.21	−0.88	−0.06	0.98
	300	0.76	0.41	0.05	0.19	−0.87	−0.07	0.98