particle inspection, have also not reported promising re-
sults [11,12]. The only reliable method currently available
for determining the local porosity of P/M parts is optical
microscopy where after sintering a sample part is cut and
examined on the cut surface with a microscope for defi-
ciencies in the inner structure. Unfortunately in order to
obtain a meaningful result, this technique requires careful
preparation of the specimens, making it time consuming
and expensive [2].