A simplified experimental method to study conductivity percolation.

A simplified experimental setup and a measurement method adapted to the simplified data analysis proposed in previous works are described in detail. The setup is intended for investigation of the conductivity percolation in the water network formed on granular materials and studied in the course of dehydration. The results show that the new, easily accessible experimental setup enables determination of the principal percolation parameters with the same accuracy as the more sophisticated equipment employing an impedance analyzer. Mean critical exponents obtained from data collected for the samples of moisturized sand grains sized 0.6-0.8 mm by means of both experimental methods give the same results within the limit of measurement uncertainty.

[1]  D. Dziob,et al.  DC conductivity percolation on drying moistened mesoporous silica SBA-15 , 2015 .

[2]  D. Dziob,et al.  Note: optimization of the numerical data analysis for conductivity percolation studies of drying moist porous systems. , 2014, The Review of scientific instruments.

[3]  J. Mościcki,et al.  Dehydration kinetics and conductivity scaling in time near the continuity failure of a water wetting film in granular media , 2013 .

[4]  D. Dziob,et al.  Electric conductivity percolation in naturally dehydrating, lightly wetted, hydrophilic fumed silica powder. , 2013, Physical review. E, Statistical, nonlinear, and soft matter physics.

[5]  J. Mościcki,et al.  Water-network percolation transition in hydrated blue-green algae in vivo , 2007 .

[6]  Gregory A Voth,et al.  Computer simulation of proton solvation and transport in aqueous and biomolecular systems. , 2006, Accounts of chemical research.

[7]  Cesare Cametti,et al.  Dielectric spectroscopy and conductivity of polyelectrolyte solutions , 2004 .

[8]  J. Mościcki,et al.  Water-network percolation transitions in hydrated yeast. , 2004, Physical review. E, Statistical, nonlinear, and soft matter physics.

[9]  Reggiani,et al.  Scaling and universality in electrical failure of thin films , 2000, Physical review letters.

[10]  J. A. Rupley,et al.  Critical exponents of protonic percolation in hydrated lysozyme powders. , 1988, Physical review. A, General physics.

[11]  J. Luck.  A real-space renormalisation group approach to electrical and noise properties of percolation clusters , 1985 .