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The uptake of 226Ra to various cement hydration phases such as calcium-silicate-hydrates (C-S-H), ettringite (AFt) and monosulfate (AFm) as well as hardened cement pastes (HCP) made from ordinary Portland cement and low pH cement, respectively, was studied in batch-type sorption experiments under anoxic conditions. Besides sorption kinetics, the effects of solution composition and solid to liquid...
This work focuses on the reprocessability of metallic 92Mo and ceramic MgO, which is under investigation for (Pu,MA)-oxide (MA = minor actinide) fuel within a metallic 92Mo matrix (CERMET) and a ceramic MgO matrix (CERCER). Magnesium oxide and molybdenum reference samples have been fabricated by powder metallurgy. The dissolution of the matrices was studied as a function of HNO3 concentration (1-7...
Migration to a 3D implementation for NAND flash devices is seen as the leading contender to replace traditional planar architectures. The new 3D NAND architectures involve the stacking of multiple cells formed inside a high aspect ratio channel hole. However, the strategy of replacing shrinking design rules for greater aspect ratios is not without its own set of challenges, especially related to defectivity...
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