Fig. 13

SEM images for samples fired at different temperatures (a) 900°C, (b)1000°C, (c) 1050°C, (d) 1100°C, (e) 1150°C, (f) 1170°C, and (g) 1200°C.

SEM images for samples fired at different temperatures (a) 900°C, (b)1000°C, (c) 1050°C, (d) 1100°C, (e) 1150°C, (f) 1170°C, and (g) 1200°C.