Figure 5

FESEM images of microstructures and grain size distributions of samples (a,b) 5B, (c,d) 5B1G, (e,f) 5B3G and (g,h) 15B3G.

FESEM images of microstructures and grain size distributions of samples (a,b) 5B, (c,d) 5B1G, (e,f) 5B3G and (g,h) 15B3G.