Figure 7

Macroscopic and microscopic images of the failed 2.5DWC without a center hole at different temperatures. (a) 20 °C; (b) 180 °C; (c) 240 °C.

Macroscopic and microscopic images of the failed 2.5DWC without a center hole at different temperatures. (a) 20 °C; (b) 180 °C; (c) 240 °C.