Effect of silica sand on activation energy for diffusion of sodium ions in montmorillonite and silica sand mixture.

摘要: Abstract The effect of silica sand on the diffusion sodium ions in mixtures montmorillonite and was studied by measuring apparent coefficients, activation energies for diffusion, basal spacing mixed samples. These experiments suggest that coefficients samples were almost same as those pure having partial dry densities montmorillonite. energy dependence density different between increased adding at 1.0 Mg m −3 , decreased higher than 1.2 . A change XRD profile observed after 1.6 Here, a three-water-layer hydrate state found sample whereas only two-water-layer sample. experimental results changed microstructure samples, which then altered sodium-ion process.