Studies on Erosion Behavior of Plasma Sprayed Coatings of Glass Microspheres Premixed with Al₂O₃ Particles

Table 6

Experimental design using L₁₆ orthogonal array and the wear test results.

A; Impact velocity (m s^−1)	B; Impingement angle (degree)	C; Erodent size (µm)	D; Erodent temperature (°C)	E; Alumina content (wt%)	Erosion rate (mg kg^−1)	S/N ratio (db)
32	30	50	30	0	8.56667	−18.6562
32	45	100	60	10	11.65643	−21.3313
32	60	150	90	20	14.23695	−23.0683
32	90	200	120	30	17. 04751	−24.6332
40	30	100	90	30	13.34126	−22.5039
40	45	50	120	20	15.56129	−23.8409
40	60	200	30	10	20.98768	−26.4393
40	90	150	60	0	18.81183	−25.4886
48	30	150	120	10	16.23178	−24.2073
48	45	200	90	0	16.53376	−24.3674
48	60	50	60	30	17.43003	−24.8260
48	90	100	30	20	20.46321	−26.2195
56	30	200	60	20	19.00984	−25.5796
56	45	150	30	30	19.14336	−25.6404
56	60	100	120	0	20.44331	−26.2110
56	90	50	90	10	22.27585	−26.9567