Abstract
The property of ceramics is governed by the internal structures of sintered body. Irregular structures of ceramics as local low density, coarse grains, defects, and cracks are the main factors which affect the strength of ceramics. Usually they are caused by coarse particles, agglomerate, granule parking etc. For example, after sintering, coarse particles change into coarse grains, agglomerates change into a kind of defect and cause the local low density. Granule interstice change into cracks and also cause the local low density. This study focuses on the internal structure between green bodies and sintered bodies, and the relationship between the irregular structure and corresponding cause will be verified through the microscope observation.
