INSTITUTE FOR MICROMANUFACTURING

Mercury Porosimeter – Micromeritics Autopore IV

The Mercury Porosimeter (AutoPore IV from Micromeritics) is an analytical instrument used to characterize a material’s porosity by applying various levels of pressure to a sample immersed in mercury under a stringently controlled environment. This system can determine a broader pore size distribution accurately and quickly. In general, the pressure required to intrude mercury into the sample’s pores is inversely proportional to the size of the pores. This system can be used for the measurements of pore size, pore volume, distribution, and also to determine other porosity-related material characteristics such as total intrusion volume, total pore surface area, median pore diameter, density, etc. This system provides high-quality analysis data and features faster pressure ramp rates, a flexible and controllable vacuum system, and a unique design for both low- and high-pressure generation system. The available data reduction and reporting choices provide more information about pore geometry and fluid transport characteristics of a material.

Capabilities:   
• Measurement of pores with diameters in the range of 3.0 nm and 1.0 mm.

• Controlled pressure can increase in increments of 0.05 psia from 0.2 to 50 psia.

• High-resolution (sub-microliter) measurement of mercury intrusion/extrusion volumes produces high precision. 

• Enhanced data reduction and reporting package includes tortuosity, permeability, compressibility, pore-throat ratio, fractal dimension, Mayer-Stowe particle size, etc. 

• High repeatability and reproducibility of measurement data.

• A choice of correction routine for baseline produces greater accuracy by correcting for compressibility and thermal effects caused by high pressure. 

• Operates in scanning and time, or rate-equilibrated modes.

• Controlled evacuation prevents powder fluctuation.

 
Contact Person:  Erica Murray Email:  emurray@latech.edu  Tel:   318-257-5148