33 Result(s)
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T. E. Konstantinova
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Article
Chemical-electric energy conversion effect in zirconia nanopowder systems
Issues concerned with the energy conversion of exothermal heterophase processes are discussed using the physico-chemical interaction between ZrO2–Y2O3 (3 mol %) nanopowder system and atmospheric moisture as an ex...
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Article
Magnetically induced electrokinetic phenomena in the surface layers of zirconia nanoparticles
Electrokinetic processes on the surface of zirconia nanoparticles induced by a weak (105−106 A/m) pulsed magnetic field (PMF) are investigated by electrochemical impedance spectroscopy, nuclear magnetic resonance...
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Article
Electrodeposition of Fe and composite Fe/ZrO2 coatings from a methanesulfonate bath
The electrodeposition of iron and composite iron-zirconia coatings from a methanesulfonate electrolyte was investigated. The current efficiency of iron deposition reaction was stated to be sufficiently higher ...
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Article
Erratum to: “Electrodeposition of Hard Iron-Zirconia Composite Coatings from a Methanesulfonate Electrolyte”
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Article
Electrodeposition of hard iron-zirconia dioxide composite coatings from a methanesulfonate electrolyte
A study of electrodeposition of iron-based composite coatings containing zirconia dioxide particles from sulfate and methanesulfonate electrolytes showed that the zirconia dioxide content in the deposits obtai...
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Article
Structural evolution of zirconia nanopowders as a coagulation process
The coagulation character of structural evolution in zirconia nanopowders is shown within the Brownian dynamics model for dispersed media (based on electron microscopy and X-ray diffraction data).
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Article
Structural and morphological features of organic-inorganic hybrid materials based on ethoxysilanes and epoxy resin
The structure of epoxy-silica nanocomposites prepared by the sol-gel method via the cationic polymerization of the organic component and anhydride curing was studied by small-angle X-ray scattering. In the pre...
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Article
Properties of epoxy polymers filled with nanopowders
The complex character of the effect of aluminum oxide and zirconium dioxide nanopowders that differ in their thermal prehistory, the specific surface value of particle sizes, phase composition, and the content...
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Article
Zirconium dioxide nanoparticles as a new model material for nanophotonics: Self-organization effects
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Article
Equal-Channel Multi-Angle Pressing Effect on the Properties of NbTi Alloy
An improvement of NbTi alloy functional properties by equal-channel multi-angle pressing (ECMAP) combined with hydrostatic extrusion, drawing and thermal treatment is revealed. The ECMAP method allows to incre...
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Article
Variation in the EPR characteristics of nanosized zirconia particles under exposure to X-ray radiation and annealing in hydrogen
The effects of various external factors on the properties of nanosized zirconia particles are studied using electron paramagnetic resonance. It is shown that x-rays initiate radiation-stimulated oxidation of c...
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Article
Influence of zirconium dioxide nanopowders on thermal oxidative degradation of an epoxy polymer
The influence of zirconium dioxide nanopowders on the thermal oxidative degradation of an amine-cured epoxy polymer was studied.
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Article
Effect of temperature on the structural characteristics of zirconium dioxide nanoparticles produced under conditions of microwave treatment
The effect of the sintering temperature on the structural characteristics of nanosized zirconium dioxide particles treated by microwave radiation during the drying process was investigated by small-angle X-ray...
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Article
Influence of yttrium on EPR characteristics of chromium ions in nanoscale particles of zirconium dioxide
The EPR and proton magnetic resonance methods were applied to study zirconium hydroxide samples which transformed to nanoscale ZrO2 powders upon annealing. The samples were obtained from solutions with mixture co...
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Article
Luminescence from thermally doped nanopowders of zirconia
The luminescence of yttria-doped tetragonal zirconia (ZrO2-4.4 mol % Y2O3) nanopowders with an average particle size of 15 nm that are prepared by the codeposition of hydroxides from nitrate solutions is studied....
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Article
Effect of magnetic pulsed field on luminescence of zinc sulfide doped with CuCl, In, and MnS
The effect of a magnetic pulsed field (MPF) of induction B = 1 T on photoluminescence, electroluminescence, and luminescence excitation spectra of powdered ZnS doped with CuCl, In, and MnS is investigated. It ...
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Article
On the nature of the second-order optical nonlinearity of nanoinhomogeneous glasses in the Li2O-Nb2O5-SiO2 system
The submicroscopic structure of lithium niobium silicate glasses of the compositions 2xLiNbO3 · (1 − x)(Li2O · 2SiO2) (x = 0.40, 0.45, 0.50) and 30Li2O · 25Nb2O5 · 45SiO2 in the initial state and after heat treat...
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Article
Influence of the conditions of manufacture of nanomeric zirconium dioxide, stabilized with yttrium oxide, on its catalytic properties in the oxidation of CO
The morphological and catalytic properties of samples of nanomeric zirconium dioxide, stabilized with yttrium oxide, manufactured via the effect of a UHF field during the process of drying precipitated zirconi...
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Chapter and Conference Paper
MODELING OF DEHYDRATION AND DEHYDROGENATION IN ZIRCONIA WITH ANION IMPURITY
The present work is devoted to research of influence anion impurity (B, C, N, O, F, Ne) on binding energy of hydrogen of hydroxyl group of bridge type on surface zirconia nanocrystal particle and energy of deh...
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Article
Investigation of the structure of nanocrystalline refractory oxides by X-ray diffraction, electron microscopy, and atomic force microscopy
The structures of nanocrystalline fibrous powders of refractory oxides have been investigated by different methods: determination of coherent-scattering regions, scanning electron microscopy (SEM), transmissio...
