Relative permittivity from room tem

Relative permittivity from room temperature to 250
C was recorded (Fig. 5), and found to follow similar trends with temperature as conventionally sintered SrTiO3 ceramics, albeitwith lower relative values (Fig. S5†). The samples prepared using CS show some frequency dependency at room temperatures which indicates some electrical differences between the conventionally and CS samples. This is unsurprising given the difference in the sintering pathway, and so although the sample is compositionally homogenous, further investigation into the exact nature of the electronic properties is required. The frequency dependence is also observed in the loss tangent, although in both cases the values of tan d approach those of conventionally sintered samples (Fig. S5†) above 75
C. The loss tangents of the CS samples also generally show better stability at the higher end of the measured temperature range.