CYCLIC COMPACTION OF CERAMIC POWDERS

Abstract

Cyclic compaction is shown to be more efficient than single-stroke and static compaction. The application of a bias pressure during cyclic compaction decreases the degree of powder compaction. A densification equation, based on the Cooper and Eaton compaction equation, is proposed to describe the cycle-dependent pressure-volume fraction relation for ceramic powder compaction. Data from cyclic compaction of alumina powder are well represented by the proposed equation.