Parametric Appraisal of Process Parameters for Adhesion of Plasma Sprayed Nanostructured YSZ Coatings Using Taguchi Experimental Design

Table 3

L₁₆ Orthogonal array design with output and S/N ratio.

Test run	Torch input power (kW)	Particle temperature (°C)	Particle velocity (m/sec)	Substrate roughness (μm)	SOD (mm)	Adhesion strength (MPa)	S/N ratio
1	30	2500	200	4	75	30.39	29.6546
2	30	2600	225	5	100	36.67	31.2862
3	30	2700	250	6	125	32.89	30.3413
4	30	2800	275	7	150	29.45	29.3817
5	35	2500	275	6	100	28.72	29.1637
6	35	2600	250	7	75	38.75	31.7654
7	35	2700	225	4	150	35.29	30.9530
8	35	2800	200	5	125	37.12	31.3922
9	40	2500	225	7	125	38.71	31.7565
10	40	2600	200	6	150	39.37	31.9033
11	40	2700	275	5	75	33.90	30.6040
12	40	2800	250	4	100	31.59	29.9910
13	45	2500	250	5	150	34.79	30.8291
14	45	2600	275	4	125	30.43	29.6660
15	45	2700	200	7	100	38.49	31.7070
16	45	2800	225	6	75	29.50	29.3964