Microstresses in ZrO2 Layer and Lateral Cracking
Micromechanical simulations of polycrystalline zirconia using the finite element method are performed in order to obtain the stresses at the grain scale of a zirconium oxide layer, since these microstresses are important for damage prediction of the layer and then oxidation kinetics. The crystallographic texture of the layer of monoclinic zirconia is taken into account. The results show that even under high compressive macroscopic stresses, the microstresses can contribute to lateral cracking promoted by the presence of tetragonal zirconia.
M. François, G. Montay, B. Panicaud, D. Retraint and E. Rouhaud
C. Berdin et al., "Microstresses in ZrO2 Layer and Lateral Cracking", Advanced Materials Research, Vol. 996, pp. 924-929, 2014