Electrical conductivity of scheelite-type systems based on calcium and strontium molybdates

Strontium and calcium molybdates doped with bismuth and vanadium were synthesised by a conventional solid state method. The total electrical conductivity of the compositions was studied by impedance spectroscopy in the temperature range of 300–650 °С. The highest electrical conductivity is shown by solid solutions based on strontium molybdate. To estimate the contribution of electronic conductivity, measurements of the total electrical conductivity were made at various partial pressures of oxygen.