Structure and dielectric behaviour of valence compensated perovskite oxideSr1-xLaxTi1-xCrxO3 ceramics

Attempts have been made to investigate, by sintering of powder components, the solid solution formation in the valence compensated perovskite oxide Sr 1-xLaxTi1-xCrxO3 system. Solid solutions, with cubic structure, form for al l the compositions up to x less than or equal to 0.50. The unit cell volume decreases with increasing value of x. The grain size of sintered samples w as in the range 2-4 mum. The dielectric constant was found to be temperatur e and frequency dependent. Orientational and space charge polarisation cont ribute to the dielectric behaviour.