Hydrothermal Corrosion of SiC Coupons Suppressed by Magnetron Sputtered Cr Coatings

Figure 7

Surface SEM image (a) and cross-sectional SEM image (b) for the corroded Cr-coated SiC specimens that were immersed in autoclave for 93 days. (c–f) show EDS maps of the image (b).

(a)

(b)

(c)

(d)

(e)

(f)