Figure 2

(a,b) SEM and (c,d) TEM images of the white, wool-like, products obtained from the inner wall of the ceramic crucible. The inset image in (d) shows the partial enlarged image of (d).
(a,b) SEM and (c,d) TEM images of the white, wool-like, products obtained from the inner wall of the ceramic crucible. The inset image in (d) shows the partial enlarged image of (d).