Density functional theory calculations and classical molecular dynamics simulations have been used to investigate the structure and dynamics of water molecules on kaolinite surfaces and confined in the interlayer of a halloysite model of nanometric dimension. The first technique allowed us to accurately describe the structure of the tetrahedral-octahedral slab of kaolinite in vacuum and in inte...

-Dehydration-induced luminescence (DIL), the emission of light from a clay paste upon dehydration, was characterized experimentally for a colloidal kaolinite. The relationship between total photon count of the emitted light and film thickness is linear up to a thickness of 30/~m. The photon emission was obtained over a critical range of water contents (25-60%) of the oven-dry clay, and the kine...

The mineral fraipontite has been studied by using a combination of scanning electron microscopy with energy dispersive analysis and vibrational spectroscopy (infrared and Raman). Fraipontite is a member of the 1:1 clay minerals of the kaolinite-serpentine group. The mineral contains Zn and Cu and is of formula (Cu,Zn,Al)₃(Si,Al)₂O₅(OH)₄. Qualitative chemical analysis of fraipontite shows an alu...

S. YARIV, I. LAPIDES, A. NASSER, N. LAHAV, I. BRODSKY, ~ AND K.H. MICHAELIAN 2 Department of Inorganic and Analytical Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel ~Department of Applied Science, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel 2Natural Resources Canada, CANMET Western Research Centre, l Oil Patch Drive, Suite A202, Devon, Alberta, Canada T9G...

the use of various slags as by-products of steel industry is well established in civil engineering applications. however, the use of bos slag in the area of soil stabilization has not been fully researched and developed despite having similar chemical composition and mineralogy to that of portland cement. this paper reports on efforts to extend the use of bos slag to soil stabilization by deter...

Abstract The composite homogeneity of polymer and inorganic content is often constrained by the high difference in surface tension two components. Inorganic filler usually reduced using organosilane modification to improve miscibility. In this study, was introduced into Kaolinite clay produce silanated kaolinite (sKal). carried out reacting with 3-Aminopropyltriethoxy silane (APS) ethanol media...

The effect of watershed spatial scale on chemical weathering is inadequately known for subtropical environments. In order to determine the relationship between watershed scale and weathering chemistry, the Enoree River basin was sampled at seven different spatial scales ranging from second-order watersheds smaller than 2 km^2 to a sixth order watershed of 1840 km^2. The second-order watersheds ...