Surface properties of ceramic laminates fabricated by die pressing

The simple die-pressing technique has been used to fabricate thick-layer zirconia/alumina ceramic laminates in the forms of film/substrate and multilayer systems. A ''vibration sieve'' method is used to achieve uniform layer thickness. In order to suppress surface crack initiation and propagation, the laminates are designed to retain residual compressive stresses in the surface layers. As a result, the surface fracture/fatigue resistance has been significantly improved, and the microhardness of the surface layer has also been increased to a certain degree.