Influences of spark plasma sintering temperature on the microstructures and thermoelectric properties of (Sr
0.95
Gd
0.05
)TiO
3
ceramics
*
Li Liang-Liang
a),
b)†
, Qin Xiao-Ying
c)
, Liu Yong-Fei
c)
, Liu Quan-Zhen
a),
b)
SEM images of (a) SGTO powders, and the mirror-polished and thermal etched surfaces for (b) S1548, (c) S1648, and (d) S1748.