doped scandia stabilized zirconia systems have shown promise for use as electrolytes in intermediate temperature solid oxide fuel cells (IT-SOFC's). Sintering properties, crystal phase transformation, and electrical conductivity of the doped systems were investigated. The effect of doping from to and different sintering temperatures on the properties and performance of the electrolyte were examined. The presence of aided the sintering process and better sintering for the doped system was achieved at lower temperatures. The cubic phase was successfully stabilized at room temperature with concentrations of and sintered at . The achievement of a cubic structure depends on both the concentration and the sintering temperature. Higher electrical conductivity was achieved with doped systems than 10ScSZ below . A maximum conductivity of at was obtained for doped sample sintered at .