Fig. 6.
The scanning electron microscopy images of the cross-section of the oxide scale formed on the in-situ TiC/Ni composite with different sintering holding times following an oxidation test conducted at 800 °C for 100 h: (a) 2 h, (b) 4 h, and (c) 6 h (Ⅰ: surface; Ⅱ: the outer oxide layer; Ⅲ: the inner oxide layer; Ⅳ: substrate.)
