A5035706833- Titanium Alloys Microstructure and Properties
- Luminescence Properties of Advanced Materials
- Metal and Thin Film Mechanics
- Intermetallics and Advanced Alloy Properties
- Glass properties and applications
- High Entropy Alloys Studies
- Additive Manufacturing Materials and Processes
- Nuclear materials and radiation effects
- Radiation Detection and Scintillator Technologies
- Metal Alloys Wear and Properties
- Radiation Effects and Dosimetry
- Pulsed Power Technology Applications
- Solid State Laser Technologies
- Advanced materials and composites
- Welding Techniques and Residual Stresses
- Surface Treatment and Coatings
- Particle Accelerators and Free-Electron Lasers
- Advanced ceramic materials synthesis
- High-Temperature Coating Behaviors
- Hydrogen embrittlement and corrosion behaviors in metals
- bioluminescence and chemiluminescence research
- Aluminum Alloys Composites Properties
- Pigment Synthesis and Properties
- Nuclear Materials and Properties
- Particle physics theoretical and experimental studies
Budker Institute of Nuclear Physics
2014-2023
Siberian Branch of the Russian Academy of Sciences
2013-2023
Russian Academy of Sciences
2014
This paper presents the results of ceramic synthesis in field a powerful flux high-energy electrons on powder mixtures. The is carried out via direct exposure radiation to mixture with high speed (up 10 g/s) and efficiency without use any methods or means for stimulation. These qualities provide opportunity optimize compositions conditions short time while maintaining purity ceramics. possibility synthesizing ceramics from powders metal oxides fluorides (MgF2, BaF2, WO3, Ga2O3, Al2O3, Y2O3,...
In this work, we present the results of structure and luminescence properties YAG:Ce (Y3Al5O12 doped with Ce3+ ions) ceramic samples. Their synthesis was carried out by sintering samples from initial oxide powders under powerful action a high-energy electron beam an energy 1.4 MeV power density 22-25 kW/cm2. The measured diffraction patterns synthesized ceramics are in good agreement standard for YAG. Luminescence characteristics at stationary/time-resolved regimes were studied. It is shown...
Synthesis in the radiation field is a promising direction for development of materials transformation processes, especially those differing melting temperature. It has been established that synthesis yttrium-aluminum ceramics from yttrium oxides and aluminum metals region powerful high-energy electron flux realized 1 s, without any manifestations facilitate synthesis, with high productivity. assumed rate efficiency are due to processes formation radicals, short-lived defects formed during...
The study is devoted to investigating the efficiency dependence of radiation-assisted ceramic synthesis based on metal oxides and fluorides initial powder particle sizes. was performed for 30 series samples, including MgO, Al2O3, ZnO, ZrO2, MgF2, complex compositions: cerium-activated yttrium-aluminum garnet (Y3Al5O12), spinel AlMgO4, tungstate MgWO4. evaluated mixture weight magnitude losses, morphology, relative obtained samples. Based analysis results measuring distribution spectra...
Thermoluminescent (TL) properties of monoclinic zirconium dioxide ceramics were studied in order to assess the possibility their use for measuring high doses (on kGy) pulsed electron beams (130 keV). Two types samples used: those synthesized by sintering an electric furnace at T = 700–1700 °C and a flow high-energy electrons (1.4 MeV) with power density. Analysis X-ray diffraction patterns using Scherrer method revealed that annealing first type > 1000 leads significant increase size...
A study of the radiation hardness pure CsI crystals 30 cm long was performed with a uniformly absorbed dose up to 14.3 krad. This initiated by proposed upgrade end cap calorimeter Belle-II detector, using crystals. set 14 truncated pyramid shape used in this produced at Institute for Scintillation Materials NAS from different ingots grown variations growing technology. Interrelationship crystal scintillation characteristics, and technology observed.
A method of surface alloying titanium substrates with tantalum in order to obtain corrosion-resistant layers is described. An electron beam injected into the atmosphere used as a power source. powder layer containing composition components and fluxing agent was placed on Ti plate. The plate exposed scanning moved at speed 1cm/sec. range 5cm, frequency 50 Hz 33.5 kW. To enhance degree coating procedure repeated up 4 times. Alloyed 2-3 mm thick 40 wt % Ta were obtained. rate corrosion HNO 3...
The results of structural investigations, mechanical properties and corrosion resistance testing materials produced by the electron beam cladding tantalum niobium powders on cp-titanium substrates are presented in this paper. treatment resulted formation remelted alloyed layers ~2 mm thickness. Any voids or cracks were not observed coatings. Dendritic segregation elements during process occurred, however microstructure was represented fine laminar-type crystals. X-ray diffraction analysis...
In this study Ti-Nb coatings formed on the surfaces of cp-titanium plates by electron beam cladding were investigated. It was found that characterized a dendrite structure and quenched observed in interdendritic space. The energy dispersive X-ray analysis revealed some differences between elemental composition different areas corresponding to dendritic crystals space them. corrosion resistance alloy obtained titanium surface concentrated nitric acid almost 8 times higher than resistance.
The quality of synthesized materials is affected by various factors such as the prehistory substances used and synthesis technology. Most methods for synthesizing luminescent ceramics based on metal oxides rely high-temperature heating to facilitate necessary exchange elements between precursor particles. However, a promising alternative method involves direct application powerful high-energy radiation flux, which stimulates different processes. formation through this occurs in highly...
The study investigates the possibility of inert gas arc welding a double layer composite material on titanium base with an anti-corrosive obtained by fused deposition powder mix containing tantalum and niobium over using electron beam emitted into atmosphere. Butt fillet options were tested two types edge preparation. Welds subjected to metallographic examination including structural analysis chemical phase composition welds. A conclusion was made regarding for manufacturing items from...
The research is involved in producing a Ti-Nb alloy surface layer on titanium substrate by high energy beam method, as well examining their structures and mechanical properties. Applying electron-beam cladding it was possible to produce of several millimeters, where the niobium concentration up 40% at. structure itself could be related martensite quenching structure. At same time, significant microhardness increase 3200-3400 MPa observed, which, its turn, connected with formation Cladding...
Поверхностное легирование титана алюминием с исПользованием метода вневакуумной электронно-лучевой наПлавки Порошковых смесей*