Dielectric properties and electrical conductivity of ZrO2-CeO2 ceramics

ZrO2-CeO2 (10, 18, and 23 mol % CeO2) solid solutions have been synthesized via coprecipitation. The powders have been sintered at 1875 K, and the electrical conductivity and dielectric properties of the resultant ceramics have been studied. The dielectric relaxation observed in the ceramics can be understood in terms of ionic transport accompanied by the formation of dipoles relaxing in an ac electric field.