CIP Treatment of Slip Cast Formed Low Soda Alumina.

This study is concerned with the fabrication of engineering ceramics parts with complicated shape by using slip casting process. To improve the density of green body, slip cast formed low soda alumina green body has been CIP treated. The improvement of the density by 150MPa-5min CIP treatment was about 1% for dried body and about 3% for as formed wet body. By the measurement of pore size distribution for CIP treated green bodies, it was shown that large pores (similar size of starting powder of low soda alumina) were smashed and small pores were shrunk. Some cracks were observed in the sintered body that is CIP treated for dried body, and the sample showed low bending strength. From these results, it is thought that high density green body and high strength sintered body is obtained from a green body that is CIP treated for as slip cast formed wet body.