Effect of layer interfaces on the high-temperature mechanical properties of alumina/zirconia laminate composites Original Research Article

High-temperature plastic deformation of laminar composites containing layers of Al2O3 and a mixture of 85 vol.% Al2O3+15 vol.% 3 mol% Y2O3-stabilized tetragonal ZrO2 (ZTA) produced by sequential slip casting is examined in uniaxial compression testing. The mechanical behavior is compared with that of monolithic Al2O3 and ZTA synthesized by the same technique. The layered composites exhibit better creep properties at low strain rate than either of the two constituent materials. The good interfacial adhesion of the layers imparts creep resistance and ductility simultaneously to the laminates.