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From Fe3Si towards Fe3Ge in Finemet-like nanocrystalline alloys: Mössbauer spectroscopy
(Elsevier Science, 2007-02-01)
Nanocrystalline Finemet-type ribbons with different Si/Ge ratio [Fe73.5Si13.5-xGexNb 3B9Cu1 (x = 7, 8, 10 and 13.5)] were studied by means of Mössbauer spectroscopy and X-ray diffraction. The trend to form the non-stoichiometric ...
Fivefold twin formation during annealing of nanocrystalline Cu
(Pergamon-Elsevier Science Ltd, 2008-12)
Contrary to the common belief that many-fold twins in nanophase materials are due to the action of significant external stresses, we report molecular dynamics simulations of 5 nm grain size Cu samples annealed at 800 K ...
Hydrogen diffusion and trapping in nanocrystalline tungsten
(Elsevier Science, 2015-01)
The hydrogen behavior in nanocrystalline W (ncW) samples with grain size of 5 and 10 nm is studied using Molecular Dynamics (MD) with a bond order potential (BOP) for the W-H system. The dependence of the hydrogen diffusion ...
Atomistic simulation of the tension/compression response of textured nanocrystalline HCP Zr
(Elsevier Science, 2017-04-28)
Molecular dynamics virtual tension/compression tests were performed to study the deformation mechanisms in nanocrystalline (15–38 nm grain size) 50 grains HCP Zr columnar samples with random [1 −1 0 0] prismatic and [0 0 0 1] ...
Green synthesis of nanocrystalline faujasite zeolite
(Elsevier Science, 2018-04)
In this work, the synthesis of 28 and 38 nm Na-Y zeolite nanocrystals is reported. The process was performed via green synthesis without any organic structure directing agents (SDAs), at low temperature and applying ...
Comparative study on the properties of ZnO nanowires and nanocrystalline thin films
(Elsevier Science Sa, 2012-12)
The microstructural, morphological, optical and water-adsorption properties of nanocrystalline ZnO thin films and ZnO nanowires were studied and compared. The ZnO thin films were obtained by a sol-gel process, while the ...
Superconductivity in nanocrystalline tungsten thin films growth by sputtering in a nitrogen-argon mixture
(Elsevier Science SA, 2019-06)
We report on the structural and superconducting properties of nanocrystalline tungsten thin films growth by sputtering at room temperature with an N2:Ar mixture (N2 from 3% to 50%). The crystalline phases were identified ...
Confinement effects in irradiation of nanocrystalline diamond
(Pergamon-Elsevier Science Ltd, 2015-08)
Swift heavy ion irradiation does not generate amorphous tracks in diamond, contrary to what happens in graphite or in diamond-like carbon. Since nanocrystalline diamond is of interest for several technological applications ...
Mechanical milled doped Zn-based semiconductors powders for photovoltaic devices
(Pergamon-Elsevier Science Ltd, 2014-05)
Structural characterization of nanocrystalline Al-doped ZnTe semiconductors, obtained by mechanical milling from ZnTe and Al 2O3 powders, is presented. The samples were analyzed by X-ray diffraction (XRD), scanning electron ...