14. Two powder distributions with average size equal 100 m and 2 m are given. For the first PF =

0.6; for the second PF = 0.64. Calculate the optimal mixture for maximizing the green density

and draw the corresponding mixture diagram.

15. The mass of a fragment of ceramic material is 19.65 g. By Hg intrusion porosimetry a bulk volume

equal to 10 cm3 and an open porosity of 2 cm3 are calculated. After careful milling (with final

particle size lower than 100 nm), a density equal 2.62 g/cm3 is measure by picnometry.

Determine the absolute and relative closed porosity, the apparent and bulk density of the

ceramic material.