Investigation of Densification Behavior of Contacting Particles Using a 2d Monte Carlo Potts Model

Abstract

Densification behavior of solid-pore systems during final stage of solid-state sintering is explored by a spin-exchange-path-dependent rate-controlled Monte Carlo (MC) Potts model. Especially, two-dimensional circular particles, contacting with each other, are digitally prepared as inputs for the proposed MC algorithm. Diffusivities in the context of pore-solid exchange along the grain boundaries, on the hetero-interfaces and through the bulk are controlled in order to elucidate the relative contribution of the different diffusion mode to the densification. The effect of grain boundary energy anisotropy on the densification behavior will be also discussed. The results indicate the proposed model generically have a potential to predict the realistic evolution polycrystalline microstructures during the solid-state sintering.