PHYSICAL INTERPRETATION OF PARAMETERS OF THE PHENOMENOLOGICAL MODEL OF SINTERING OF POROUS BODIES

The possible participation of excess vacancy generation and annihilati on processes in the formation of ''active imperfections,'' and the eff ect of these processes on the kinetics of pore volume shrinkage are co nsidered. The proposed three-stage model x - U-y - W includes a system of equations from which the W(t, T) relationship for isothermal and n onisothermal sintering regimes can be calculated with the aid of a com puter (W = v/v. where v = pore volume).