| 1. |
- Lubenschenko, A., et al.
(författare)
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XPS Study of Niobium and Niobium-Nitride Nanofilms
- 2018
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Ingår i: Journal of Surface Investigation. - 1819-7094 .- 1027-4510. ; 12:4, s. 692-700
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Tidskriftsartikel (refereegranskat)abstract
- A new, XPS-based approach to quantitative and nondestructive determination of the chemical and phase layer composition of multicomponent multilayer films is proposed. It includes a new method for subtracting the background of repeatedly inelastically scattered photoelectrons, taking into account the inhomogeneity of inelastic scattering over depth; a new way of decomposing a photoelectron line into component peaks, taking into account the physical nature of various decomposition parameters; solution of the problem of subtracting the background and decomposing the photoelectron line simultaneously; and determination of the thickness of the layers of a multilayer target using a simple equation. The phase-layer composition of nanoscale Nb and NbN films is determined, and the thicknesses of these layers are calculated.
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| 2. |
- Stepanova, K. V., et al.
(författare)
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Influence of annealing on the structure of nanoporous oxide films on the surface of titanium‒aluminum powder alloy
- 2016
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Ingår i: Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques. - Moscow : Maik Nauka/Interperiodica. - 1027-4510. ; 10:5, s. 933-941
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Tidskriftsartikel (refereegranskat)abstract
- Oxide films obtained during anodization of Ti‒40% Al sintered powder samples in fluorine-containing electrolytes are investigated. With scanning electron microscopy and X-ray phase analysis, it is demonstrated that an X-ray amorphous nanoporous anodic oxide film is formed on the surface of the powder microparticles under optimal anodization conditions. After annealing at T = 1093 K in air and vacuum (10‒2 Pa), the oxide films are revealed to crystallize with its regular porous structure retained. The composition of the polycrystalline anodic-oxide films annealed in air is a mixture involving TiO2 (anatase and rutile) and α- and γ-Al2O3 phases and Ti2O3 and Al2TiO5 traces. The vacuum annealing process makes it possible to identify TiO2, in which anatase is the main phase, α- and γ-Al2O3, and Ti2O3 and TiO traces. However, rutile is not revealed. The presented results indicate that the application of the anodic nanostructuring of Ti‒40% Al powders is promising for the obtainment of new photocatalytic active nanomaterials. © 2016, Pleiades Publishing, Ltd.
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