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

Table 2

Levels of the variables used in the experiment.

Control factor	Level
	I	II	III	IV	Unit
Impact velocity	32	40	48	56	m s^−1
Impingement angle	30	45	60	90	Degree
Erodent size	50	100	150	200	µm
Erodent temperature	30	60	90	120	°C
Alumina content	0	10	20	30	wt%