Barry R. Bickmore

TL;DR: In this paper, the atomic structure of dioctahedral 2:1 phyllosilicate edge surfaces was calculated using pseudopotential planewave density functional theory, and it was shown that significant surface relaxation should occur on the (110)-type faces, as well as in response to different protonation schemes on both surface types.

TL;DR: In this paper, the influence of Al(OH) 4 − on the dissolution rate of quartz at pH 10−13 and 59−89°C was determined using batch experiments, along with what is known about Al−Si interactions at high pH, are consistent with Na + co-adsorbing on silanol sites and passivating the surrounding quartz surface.

TL;DR: In this article, the unsaturated valence of oxygen atoms in oxyacids, hexaquo cations, and oxide surfaces is calculated based on MeO bond lengths.

TL;DR: Caustic NaNO3 solutions containing dissolved Al were reacted with quartz sand at 89 degrees C to simulate possible reactions between leaked nuclear waste and primary subsurface minerals at the U.S. Department of Energy's Hanford site in Washington to modeled the evolution of experimental Si concentrations.

TL;DR: In this paper, the surface area of three kaolinite clay standards was determined using atomic force microscopy images and computerized image analysis, taking into account the complex microtopography of the particles.