PREDICTION OF OVERALL SHAPE OF SINTERED ALUMINA COMPACTS

The effects of the final aspect ratio on the overall shape of cylindri cal sintered compacts, prepared by a uniaxial die pressing technique, are measured and described. An empirical compaction equation, which de scribes the compaction behaviour of a spray dried AKP-30 alumina powde r, is presented The density distribution along the axis of the compact s was predicted by, using an established first-order analysis. From th ese predicted density distributions, the overall shapes of the sintere d compacts were quite accurately predicted by using a set of sintering simulation equations obtained in separate experiments.