A5044866629- Nuclear Materials and Properties
- Nuclear Physics and Applications
- Metal and Thin Film Mechanics
- Magnetic and transport properties of perovskites and related materials
- Diamond and Carbon-based Materials Research
- Fusion materials and technologies
- Advanced Materials Characterization Techniques
- Catalysis and Oxidation Reactions
- Advanced Condensed Matter Physics
- Catalytic Processes in Materials Science
- Intermetallics and Advanced Alloy Properties
- Titanium Alloys Microstructure and Properties
- Physics of Superconductivity and Magnetism
- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Nuclear materials and radiation effects
- Advanced materials and composites
- Ion-surface interactions and analysis
- Hydrogen embrittlement and corrosion behaviors in metals
- Cold Fusion and Nuclear Reactions
- Nuclear reactor physics and engineering
- Laser-Ablation Synthesis of Nanoparticles
- Thermodynamic and Structural Properties of Metals and Alloys
- Metallurgical Processes and Thermodynamics
- Luminescence Properties of Advanced Materials
M.N. Mikheev Institute of Metal Physics
2015-2024
Ural Branch of the Russian Academy of Sciences
2017-2021
Russian Academy of Sciences
1998-2013
Institute of Metallurgy
1972-2011
Ural Institute of Metals
1975-1998
Institute of Physics
1998
Diffusion of deuterium in potassium is studied herein. Mass transfer controlled predominantly by the mechanism overbarrier atomic jumps at temperatures 120-260 K and tunneling 90-120 K. These results together with literature data allowed us to determine conditions under which quantum diffusion hydrogen metals can be observed, a fundamental problem. It established that body-centered cubic lattice observed only below Debye temperature θD solely for < 350 Predictions are made experimentally...
Reduction of ZrO 2 by lithium during electrolysis LiCl-KCl-Li O melt at 650 °C was studied using a set physicochemical methods analysis. Influence in the space near molybdenum cathode on kinetics process established. Possible variations electrode reaction associated with zirconium reduction were proposed. The appearance resulted consumption reduced and increase potential relaxation time after polarization. Long-term galvanic impulse carried out which immersed into powder. According to X-ray...
The mechanisms of formation activated states upon diffusion impurity interstitial atoms in metals have been identified, which allows formulation the theoretical criterion for reliability corresponding experimental data. This is valid almost all results gained using precise techniques bcc, fcc, and hcp metals. In case hydrogen, oxygen, nitrogen, most adequate are models potential barrier that based on elasticity theory. For carbon boron, a less energy-taking mechanism realized involves...
It is shown that investigations of the isotope exchange kinetics in nanocrystalline oxides allows one not only to solve problems connected with determination process parameters and characteristic scenarios, but also substantially extend experimental opportunities analysis diffusion properties oxides. A specific behavior oxygen was studied LaMnO3 ZrO2:Y2O3 The former oxide characterized by very small values volume coefficients, while latter is, on contrary, an ionic conductor. study carried...
The kinetics of the isotope exchange between gaseous oxygen enriched with 18O and two LaMnO3+δ oxide samples – a nanopowder bulk nanocrystal has been studied. concentration measured by acceleration nuclear microanalysis method. coefficients volume nanograin boundary self-diffusion have evaluated at 500 °C. They are equal to 3.5·10 −20 1.5·10 −13 cm2/s, respectively.
The method of using deuterium probes was proposed for studying the defect structure oxide nanoparticles. It based on fact that in course annealing nanoparticles deuterium, clusters consisting point defects and atoms are formed. content depended type defects. concentration were determined by nuclear reactions. technique applied to study structures YSZ10, cubic zirconium dioxide doped with yttrium, TiO2. nanopowders YSZ10 TiO2 synthesized means laser evaporation ceramic target; besides,...