Density dependence complex dielectric constant of pulverized limestone-coal mixtures at 10.1 GHz

The relative complex dielectric function epsiv*(omega)=epsiv\´ - jepsiv" of pulverized samples of different grade limestone (cement grade, chemical grade, steel melting soap (SMS) grade and dolomite), coal (lignite) and limestone-coal mixtures (65 wt% + 35 wt%) were measured at 10.1 GHz over a range of bulk densities from loosely to tightly packed. It is found that for these powdered samples, the (e\´)^1/3 values with a range of varying densities are governed by the linear relationship and also depends on their chemical composition. The e\´ values of pulverized and solid samples were estimated using various dielectric equations of heterogeneous mixtures.