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We report an approach for preparing refractory nanoporous materials using high surface area silica aerogels as templates for the growth of conformal tungsten (W) coatings by atomic layer deposition (ALD). Nanoporous silica aerogel monoliths were prepared with a variety of initial pore sizes and initial densities in the range of 0.3–0.5g/cc using porogen extraction methods. Next, W ALD using Si ...
The forces between substrates and ceramic particles in aqueous solution were measured using an atomic force microscope (AFM). The dependence of the measured forces on the pH and ionic strength of the solution are presented. The trends are consistent with expectations based on the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory.The kinetics of the nucleation and growth of tin oxide particles in aqueous...
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