Self-organization of iron-atom nanostructures in the first layer of the (100) copper surface

Колесников, С. В.

doi:10.1134/s0021364014050117

Cited by 12 publications

(2 citation statements)

References 18 publications

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“…Alternatively, a property P of any nanocomposite produced by cold sintering of bimetallic Fe-Cu nanoparticles with Fe-to-Cu ratio 0.25 ≤ r ≤ 4.0 at consolidation pressure 1 ≤ p ≤ 5 GPa can now be determined. If the initial cold-sintering parameters are among the 15 unused p-r pairs for which the Minkowski functionals have been determined (out of the total 23 in the library), the property P is estimated by substituting the corresponding M Fe i (p, r) and M Cu i (p, r) into equation (7). In all the other cases interpolated values of Minkowski functionals can be used.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Cold-Sintering Parameters on Structure, Density, and Topology of Fe–Cu Nanocomposites

et al. 2020

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The design of advanced nanostructured materials with predetermined physical properties requires knowledge of the relationship between these properties and the internal structure of the material at the nanoscale, as well as the dependence of the internal structure on the production (synthesis) parameters. This work is the first report of computer-aided analysis of high pressure consolidation (cold sintering) of bimetallic nanoparticles of two immiscible (Fe and Cu) metals using the embedded atom method (EAM). A detailed study of the effect of cold sintering parameters on the internal structure and properties of bulk Fe–Cu nanocomposites was conducted within the limitations of the numerical model. The variation of estimated density and bulk porosity as a function of Fe-to-Cu ratio and consolidation pressure was found in good agreement with the experimental data. For the first time, topological analysis using Minkowski functionals was applied to characterize the internal structure of a bimetallic nanocomposite. The dependence of topological invariants on input processing parameters was described for various components and structural phases. The model presented allows formalizing the relationship between the internal structure and properties of the studied nanocomposites. Based on the obtained topological invariants and Hadwiger’s theorem we propose a new tool for computer-aided design of bimetallic Fe–Cu nanocomposites.

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Section: Discussionmentioning

confidence: 99%

“…Such materials can be used in a wide range of applications, from friction materials and high voltage sliding contacts to devices for magnetoelectronics and spintronics [3][4][5][6]. The creation of Fe nanostructures on Cu substrates is also of great theoretical and practical interest [7][8][9].…”

Section: Introductionmentioning

confidence: 99%