Rare Earth-Doped SrTio₃ Perovskite Formation from Xerogels

Figure 5

SEM micrographs of the samples sintered at 1350°C: (a) and (b) STO_0.5% Tm; (c) and (d) STO_2% Tm; (e) and (f) STO_5% Tm.

(a)

(b)

(c)

(d)

(e)

(f)