Laminated Ceramic Structures from Oxide Systems

In this paper we present the results recently obtained in the study of laminated ceramic composites. The motivation for studying and producing laminated ceramic composites have been illustrated. Theoretical model useful to guide the design of laminated structures have been discussed and a route to prepare layered structures in the system Al2O3-ZrO2 have been suggested. The residual stresses developed in the ceramic layers have been quantified by indentation technique and piezo-spectroscopic analysis. With the latter technique also the stress distribution in the different layers has been assessed. Higher wear resistance under sliding and abrasive conditions of layered ceramics have been, demonstrated. The improvement of fatigue contact damage resistance and an increase of Weibull modulus underlined.