In the next step, increased power led to an increase in heating rate of only about 30%. The rapid increase of the heating rate during the first step was the result of a lack of heat diffusion. If the heating power is low, the heat generated in the sample dissipates to a colder place (the punches), and the sample is heated more slowly. This indicates that for effective induction, the sintering induction power unit should have some minimum power below which heating is ineffective.