The possibility of the formation of a solid solution in the Sr1-xLaxSn
1-xCoxO3 system has been explored. Single-phase solid solution forms i
n the compositions for x less than or equal to 0.10. All single-phase
solid solution compositions have a cubic structure similar to SrSnO3.
The dielectric behaviour of these solid solution compositions has been
studied as a function of temperature and frequency. The frequency dep
endence of dielectric constant and dielectric loss in these materials
indicates that space charge polarization contributes significantly to
their observed dielectric parameters. Microstructural studies show the
presence of well-faceted grains. The average grain size in these samp
les is small.