Influence of external constraints on the stability of sintering of bi-porous materials

摘要

The constitutive behavior of a material with bimodal pore distribution is considered in the presence of external constraints and loading. For analysis, numerical methods of the continuum mechanics of sintering are utilized. The effects of partial constraining of the external surface of powder specimens subjected to sintering are studied. The evolution of volume fractions of small and large pores is analyzed. The sensitivity of large and small pore volume fraction kinetics to constraining/loading path is determined.