Diffusion Fundamentals (E-Journal)
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Computing the mean square displacement of intruders in freely cooling granular gases with kinetic theory and a random flight approach
No full textNucleation and growth kinetics of ZnAl2O4spinel in crystalline ZnO - amorphous Al2O3 bilayers prepared by atomic layer deposition
Get PDFImproved prediction of Fick diffusion coefficients in liquids with consistent G model parameters
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Diffusion in Metals and Intermetallics: An Overview
Get PDFAfter a few remarks about the history of diffusion in solids we remind the reader to some basics of diffusion such as tracer diffusion, interdiffusion, high-diffusivity paths, and basic diffusion mechanism in solids. We then summarize self-diffusion in cubic, hexagonal metals and metals with phase transformations. Then we summarize diffusion of substitutional impurities (solutes) in metals and remind the reader to the phenomena of slow solute diffusion in aluminium and of fast solute diffusion in polyvalent metals. We finish the part on solute diffusion with some remarks on interstitial impurities We start the part on intermetallic alloys by reminding the reader to some of the more frequent structures. We consider examples of the influence of order-disorder transformation on diffusion. We then discuss diffusion in cubic B2-structured phases and in B2-, L12- and DO3- intermetallics, We then discuss uniaxial L10-intermetallics and C11b-structured molybdenum disilicide. We finish with some remarks diffusion in the cubic Laves phase Co2Nb
Formation and Ripening of Nanobelts/Nanofibers under Stirring of aqueous Solution – alternative models
No full textProblem of V2O5 nanobelts production under intensive stirring of V2O5 powder in salted water is revisited. Method was initially proposed in 2016 but models and understanding were lacking. Here an independent attempt of the controlled V2O5 nanobelts formation and growth under stirring with various rotation frequencies is reported, as well as some alternative mechanisms and respective mathematical models of the nanobelts growth and ripening kinetics
