... ≤ x ≤ 0.2, it was observed for SrTi 0.8 Co 0.2 O 3 that Co element agglomerated at the grain boundary during sintering. The dense SrTi 0.8 Co 0.2 O 3 sample was destroyed and included Sr 2 TiO 4 as a secondary phase after reducing treatment at 1000 °C. As a result of Co doping, the linear thermal...

...Michael Lankin; Yanhai Du; Caine Finnerty Silica is a well-known impurity in solid oxide fuel cell raw materials, namely NiO and yttria-stabilized zirconia (YSZ). At elevated temperatures silica will migrate to the grain boundaries, form insulating siliceous phases, and lead to a decrease...