The Texture Analysis Laboratory is used to measure the texture of both compact and powder materials. The relevant parameters are determination of porosity, volume intrusion, pore size and tortuosity (mercury porosimetry), measurement of specific surface area, pore size and distribution (micro-, meso- and macropores) (BET analysis: Sorptomatic 1990), determination of density of materials (helium pycnometry) including water vapour sorption analysis (water vapour sorption analyser, DVS).
For mercury porosimetry, it is necessary to use compact samples, usually of dimensions 10x10x10 mm or 20x10x10 mm, from 0.15 to 5 g. For specific surface area measurements, a sample weight of 0.35 to 1 g is required with a density of approx. 5-10 g. A weight of about 5-10 mg is needed to analyse water vapour sorption.
Equipment:
- Mercury porosimetry: Autopore 9500, Micromeritic
- BET analysis: Sorptomatic 1990, ThermoFinnigan
- Pycnomatic Porotec
- Water vapor sorption analyzer (DVS): DVS Advantage 1
Contact persons: Ing. Pavlovský Jiří, Ph.D., Ing. Vontorová Jiřina, Ph.D.