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

Figure 4

The cross-section views of SEM micrograph showing splat boundaries in 8 wt.% YSZ APS coatings prepared from different starting granules: (a) YZ-WH, (b) YZ-AH, and (c) YZ-WD.

(a)

(b)

(c)