ABSTRACT

From experiments with mixtures of small and large single particles annealed in the presence of a liquid phase, it was concluded that during liquid phase sintering small particles partially dissolve and the solid phase precipitates on the large solid particles. Due to the reprecipitation process large particles form polyhedral shapes. Simultaneously, the number of small particles decreases due to the dissolution and reprecipitation processes. The dissolution of small particles leads to further densification due to rearrangement of small and large particles. This rearrangement process was simulated in the model system. The purpose of this paper is two-dimensional computer modeling of the effect of Ostwald Ripening or microstructural evolution of liquid phase sintered material.