1398 S. Wu et al. Composites: Part A 37(2006)1396-140 c 100u 100ym g 500ym Fig 3. SEM of CV Sic coating surface before and after corrosion for 10 h:(a)as-received; (b)1000C;(c)1100C:(d)1200C; (e)1300°C;()1400°C;(g)1500°CFig. 3. SEM micro-morphologies of CVD SiC coating surface before and after corrosion for 10 h: (a) as-received; (b) 1000 C; (c) 1100 C; (d) 1200 C; (e) 1300 C; (f) 1400 C; (g) 1500 C. 1398 S. Wu et al. / Composites: Part A 37 (2006) 1396–1401