Al_2/Y-TZP continuous functionally graded ceramics by filtration-sedimentation

摘要

The filtration-sedimentation method is applied as an alternative route to obtain functionally graded ceramics (FGCs) without defined interfaces. Using this technique a fully dense Al_2O_3Y-TZP continu- ous functionally graded ceramic has been obtained after sintering at 1550 deg.C. the concentration gra- dient shows a parabolic distribution of phases which depend on the starting slurry solid concentration.