L. Zhang, V.D. Krstic/ Theoretical and Applied Fracture Mechanics 24(1995)13-19 a Fig. 8. SEM micro h of graphite layer(a)before and( b)after sintering showing SiC crystalsL. Zhang, V.D. Krstic / Theoretical and Applied Fracture Mechanics 24 (1995) 13-19 17 (a) (b) Fig. 8. SEM micrograph of graphite layer (a) before and (b) after sintering showing SiC crystals