1995 Volume 103 Issue 1202 Pages 1037-1040
In applications of ceramics as a structural component, the forming technology and the strength reliability are the most important. One of the factors, which control the strength reliability of ceramics, is large pores as defect, and it is produced in forming process. In this study, the influence of granule properties on the structure of green bodies and the strength of sintered bodies in uniaxial press forming of alumina ceramics was investigated. The sintered bodies from several kinds of granules showed the bending strength of 450-310 MPa, and the granule with low breaking strength gave the sintered bodies with high bending strength due to a small number of large pores. The breaking strength of granule was affected significantly by the amount of dispersant and the type of binder.
