NEW COMPACTION EQUATION FOR POWDER MATERIALS

A new semi-empirical/semi-theoretical compaction equation for powder m aterials which describes the relationship between the green density of compacts and the applied external pressure is presented. This equatio n involves three empirical constants, which are explained physically. The agreement between the equation and the experimental data for green density as a function of pressure for five powder materials is satisf actory in the pressure range tested. It is concluded that the equation is applicable to metallized ceramic powders, mixed ceramic/metallic p owders and pure metallic powders.