Abstract: Adding compounds which form in the temperature range of 1000.degree. to 1250.degree. C. the eutectics CuO.Cu.sub.2 O or CuO.Cu.sub.2 O Me.sup.IV O.sub.2 to materials having a perowskite structure results in a reduction of the sintering temperature of the perowskite ceramic to between 1050.degree. and 1185.degree. C. For the perowskite ceramic the relevant materials are alkaline earth titanates, -zirconates, -stannates and mixed crystals thereof; Me.sup.IV O.sub.2 represents the oxides of the elements of group IV of the periodic system of elements.

Abstract: Method for producing a dielectric having perowskite structure comprising stoichiometric alkaline earth titanates, alkaline earth zirconates, alkaline earth stannates and mixed crystals thereof, wherein an admixture of eutectic-forming compounds which are capable of forming CuO.MeO.sub.x when sintered in an oxygen atmosphere, which cannot in practice be built into the perowskite lattice, are added to the stoichiometric perowskite structure and wherein the mixture of compounds is sintered at a partial oxygen pressure of 0.2 to 1 Bar in the temperature range from 1000.degree.-1250.degree. C., MeO.sub.x in the above-mentioned formula being the oxide of at least one element of group III, V, VI or VII of the Periodic System of Elements (P.S.E.).