Rare Earth-Doped SrTio₃ Perovskite Formation from Xerogels

Table 3

Vickers microhardness of doped perovskites samples.

Sample	Vickers hardness; (GPa)
STO_0.5% Tm_1350°C	9.61 ± 0.86
STO_2% Tm_1350°C	9.76 ± 0.56
STO_5% Tm_1350°C	9.16 ± 0.73