Compaction of Metal-Ceramic Powder Mixture. Part.1

Abstract

The strength of green compact is influenced by the characteristics of the powders (apparent or tap density, particle size and shape, internal pores etc.), the processing parameters (applied force, pressing type, temperature) and testing conditions (strain rate etc.). For elucidation the phenomena that arise in the compaction of metallic and ceramic powders mixtures, in the first part of the paper, we present the mechanisms that influence the densification behaviour, the post-elastic effect, the compressibility of different (e.g. Al or Cu alloys-SiC/Al 2 O 3 / TiO2) mixture powders and the particularities of each of them during the three stages of compaction.