In
mercury intrusion porosimetry the non-wetting properties of mercury are used to gain
information on the porous characteristics of solid materials. A higher pressure is
needed to force intrusion of mercury in smaller pores. In this way a wide dynamic
range of pores can be measured starting from 4 nm(pressure
= 400 MPa) up to 200 µm (vacuum). As a consequence, this technique is extremely suitable for materials showing
broad distributions of pores or mainly macropores. Prior to the
analysis, vacuum degassing is used to remove moisture from the porous
structure.
The low and
high-pressure intrusion measurements are performed on the CE
Instruments Pascal 140 and 440, respectively.
The report comprises a graphical representation of the intrusion and extrusion curve
and the corresponding pore size distribution accompanied by data on pore volume
and porosity.
In
mercury intrusion porosimetry the non-wetting properties of mercury are used to gain
information on the porous characteristics of solid materials. A higher pressure is
needed to force intrusion of mercury in smaller pores. In this way a wide dynamic
range of pores can be measured starting from 
