Spark Plasma Sintering and Densification Mechanisms of Antimony-Doped Tin Oxide Nanoceramics

Figure 5

SEM micrographs of sintered ATO nanoceramics with different Sb doping concentrations: (a) 1 at.% Sb, (b) 3 at.% Sb, (c) 5 at.% Sb, and (d) 10 at.% Sb.

(a)

(b)

(c)

(d)