Durability of simulated waste glass: effects of pressure and formation of surface layers

摘要: The leaching behavior of simulated Savannah River Plant (SRP) waste glass was studied at elevated pressures and anticipated storage temperatures. An integrated approach, which combined leachate solution analysis with both bulk surface studies, used to study the corrosion process. Compositions leachates were evaluated by colorimetry atomic absorption. Used in analyses optical microscopy, scanning electron X-ray energy spectroscopy, wide-angle diffraction, microprobe analysis, infrared reflectance spectroscopy for chemical Auger spectroscopy. Results from this show that there is no significant adverse effect pressure, up 1500 psi 90°C, on durability SRP leached one month deionized water. In addition, layer characterized an adsorbed film rich minor constituents glass. This remained even after relatively alkaline solutions 90°C month. sample area volume leachant ratios (SA/V) 10:1 cm−1 1:10 cm−1. The mechanisms subsurface layers produced will be discussed along potential importance these results repository storage.