抄録
A sintering model in which sintering occurs at necks between edges and faces of polyhedral particles has been proposed. Kinetic equations for densification derived from this model indicate 1/4 power dependence of time for sintering controlled by the grain boundary diffusion mechanism, and the obtained shrinkage data of Al2O3 compacts were best fitted by these equations. Furthermore, satisfactory agreement was found between theoretical and experimental specific surface areas.
