Protective Ceramic Coatings for Solid Oxide Fuel Cell (SOFC) Balance-of-Plant Components

Figure 11

Sample Al2O3-B137 before and after thermal cycling. (a) Before thermal cycling, shown at 5,000X. (b) Before thermal cycling, shown at 10,000X. (c) After thermal cycling, shown at 5,000X. (d) After thermal cycling, shown at 10,000X. The nonthermally cycled sample EDX shows only iron (Fe), aluminum (Al), silica (Si), carbon (C), and oxygen (O). Fe, Si, and C are in the substrate. No Cr or Ni was detected.

(a)

(b)

(c)

(d)