Witryna14 kwi 2024 · The obtained information here enriches understanding of the effects of impurity segregation at liquid metal/solid interfaces, and further helps manipulate … Witryna4 cze 1998 · Segregation and transport coefficients of impurities at the Si/SiO 2 interface have been studied. A brief model has been proposed which relates the two …
Grain Boundary Decohesion by Impurity Segregation in a Nickel …
WitrynaThe observed segregation behaviors cannot be explained by the elastic interactions only, but can be successfully understood if the electrostatic interactions are taken into … Witryna15 mar 2024 · Calculations determined that oxygen deficiency can cause the impurity phase segregation. Therefore, preventing oxygen release from delafossites could … pukahf co-invest one lp
Study of impurity segregation, crystallinity, and detector …
Witryna1 lip 1991 · The segregation behavior of model dopants during liquid phase epitaxy of A/A1−xBx heterostructures is studied using Non-equilibrium Molecular Dynamics … Segregation which occurs in well-equilibrated systems due to the instrinsic chemical properties of the system is termed equilibrium segregation. Segregation that occurs due to the processing history of the sample (but that would disappear at long times) is termed non-equilibrium segregation. Zobacz więcej In materials science, segregation is the enrichment of atoms, ions, or molecules at a microscopic region in a materials system. While the terms segregation and adsorption are essentially synonymous, in practice, … Zobacz więcej Segregation of a solute to surfaces and grain boundaries in a solid produces a section of material with a discrete composition and its own set of properties that can have important (and often deleterious) effects on the overall properties of … Zobacz więcej In some situations where segregation is important, the segregant atoms do not have sufficient time to reach their equilibrium level as defined by the above adsorption … Zobacz więcej • Lejcek, Pavel (2010). Grain boundary segregation in metals. Berlin: Springer-Verlag. ISBN 978-3-642-12504-1. • Shvindlerman, Günter Gottstein, Lasar S. (2010). Grain boundary migration in metals : thermodynamics, kinetics, applications … Zobacz więcej Equilibrium segregation is associated with the lattice disorder at interfaces, where there are sites of energy different from those within the lattice at which the solute atoms can deposit themselves. The equilibrium segregation is so termed because the … Zobacz więcej Several theories describe the equilibrium segregation activity in materials. The adsorption theories for the solid-solid interface and the solid-vacuum surface are direct analogues of theories well known in the field of gas adsorption on the free surfaces of solids. Zobacz więcej All metal castings experience segregation to some extent, and a distinction is made between macrosegregation and microsegregation. … Zobacz więcej Witrynaimplantation or annealing), the impurities tend to aggregate and segregate. This segregation may be only chemical (region (2)), i.e. the crystal structure is maintained and only the local impurity concentration varies across the material, alternating between impurity-rich and impurity-poor regions (e.g. in Co-doped ZnO [7] and Mn-doped … seattle public library passes