Use of a mathematical model for pore volume shrinkage over a wide temperature range

On the basis of experimental data for the sintering of nickel powder under a regime of alternate isothermal and non-isothermal periods, it is shown that a mathematical model of pore volume decrease is capable of describing the process over the temperature range 550–900°C. It appears that in all cases both the time and temperature dependence of pore volume shrinkage are determined by parameter-constants which depend on the method of production of the initial powder.