Frenkel's liquid-phase sintering mechanism has essential influence on the
sintering of materials, however, by which only the initial 10% during
isothermal sintering can be well explained. To overcome this shortage,
Nikolic et al. introduced a mathematical model of shrinkage vs. sintering
time concerning the activated volume evolution. This article compares the
model established by Nikolic et al. with that of the Frenkel's liquid-phase
sintering mechanism. The model is verified reliable via training the height
and diameter data of cordierite glass by Giess et al. and the first-order
partial differential equation. It is verified that the higher the
temperature, the more quickly the value of the first-order partial
differential equation with time and the relative initial effective activated
volume to that in the final equibrium state increases to zero, and the more
reliable the model is.
Research Advances in Sintering Technology and Sintering Mechanism of Powders
