Characterization of Al{sub}2O{sub}3 porous ceramic based on three-dimensional microstructure

摘要

Based on the concept of controlling the distribution of structural elements over wide length scales, the development of synergy ceramics has been promoted. Th this study, we have developed a system to evaluate the macroscopic properties of synergy ceramics by the homogenization method. The voxel mesh is used to model the microscopic unit cell with image-based modeling to reduce human efforts. In this report, we polished Alumina porous ceramic precisely by every 2.0±0.5μm thickness and automatically generated a voxel mesh by a commercial software VOXELCON. The homogenized elastic constants were calculated and compared with the measured values. Very good agreement between the numerical prediction and the experiment was obtained. It is also presented that all the procedures were carried out practically on a standard PC.