Indentations on Air Plasma Sprayed Thermal Barrier Coatings Prepared by Different Starting Granules

Table 1

The deposition condition of air plasma sprayed YSZ.

Controlled parameters	Deposition conditions
Current (A)	540
Primary gas, Ar (L/min)	45
Secondary gas, H2 (L/min)	5
Deposition distance (mm)	150
Deposition speed (mm/sec)	500
Pitch (mm)	4