Observation of Mechanism of occurence fracture in dryed compacts

Abstract

The occurrence of fracture in a drying process of slip-cast hollow green bodies for large potteries was investigated. In the slip casting process, the flow of the poured slurry was observed, and a weld line was formed in the green body by contact of the side surfaces of slurry. In the drying process, cracks were occurred at the weld line. It was found that the formation of the weld line in the slip casting is prevented by vibrating the plaster mold.