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21.
CORROSION AND HEAT-RESISTANT NANOPOROUS CERAMIC MATERIALS BASED ON Y2O3 AND ?-Al2O3
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(Not-set)
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... revealed any degradation of the physical and mechanical characteristics of the samples. Experimental studies of the separation of solid and liquid components of suspensions on porous ceramic membranes ...
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22.
SOL-GEL SYNTHESIS OF NANOCRYSTALLINE ANTIMONY-CONTAINING CERAMICS FROM OXIDE PRECURSORS
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(Not-set)
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The article describes the features of the synthesis of a new oxide pyrochlore Bi2.7Ni0.7Mg0.46Sb2O10+? (sp. gr. Fd-3m, a = 10.4703 ?) containing antimony (V) and bismuth (III) cations from a stoichiometric ...
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23.
PHYSICAL AND MECHANICAL CHARACTERISTICS OF CERAMIC MATERIALS OF SYSTEMS ZrO2–Sm2O3 TWO-PHASE COMPOSITION
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(Not-set)
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... composition is formed, including tetragonal and cubic form of solid solutions based on ZrO2. It has been found that the amount of Sm2O3 affects the ratio of the phases formed, and accordingly affects the ...
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24.
SYNTHESIS OF TITANIUM OXIDE POWDERS FROM VARIOUS TITANIUM SALTS AND STUDY OF ITS PROPERTIES
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(Not-set)
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In this work, a number of titanium oxide powders with different crystal structures and textural characteristics were synthesized. The initial raw materials were metallic titanium and rutile (rutile particle ...
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25.
APPLICATION OF SOL-GEL TECHNIQUE FOR SYNTHESIS OF NANOSTRUCTURED PIEZOELECTRIC MATERIALS IN LEAD ZIRCONATE-TITANATE SYSTEM – A REVIEW. PART 2. SYNTHESIS OF FILM AND ROD STRUCTURES
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(Not-set)
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In the present study, we review current progress in sol-gel techniques for synthesis of ferroelectric powders, thin films and rods in lead zirconate-titanate system, as well as methods for obtaining controlled ...
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26.
CERAMICS WITH ULTRAHIGH PERMITTIVITY VALUES: COMPOSITIONS, SYNTHESIS METHODS AND PROPERTIES AT LOW AND MEDIUM FREQUENCIES
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(Not-set)
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... and non-ferroelectric components,
as well as solid solutions based on them. Various approaches to increasing the dielectric permittivity of materials are considered: doping, sintering atmosphere, grinding ...
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27.
INVESTIGATION OF THE KINETICS OF VACUUM SINTERING OF OPTICAL LUMINESCENT CERAMICS Y3-xScxA5O12:Cr
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(Not-set)
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The purpose of this work is to study the effect of scandium in the dodecahedral and octahedral positions of the garnet crystal lattice on the features of vacuum sintering of optical ceramics Y3-хScxAl2-yScyAl3O12:Cr, ...
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28.
NUCLEATION AND CRYSTALS GROWTH IN THE VOLUME OF GLASS Li2O–Al2O3–SiO2 SYSTEM
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(Not-set)
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... maximum rate of nucleation the crystalline phase of ?-eucryptite-like solid solutions was found. The activation energy of nucleation and the Avrami parameter were measured by the DSC method, allowing to ...
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29.
FEATURES IN MICROSTRUCTURE AND THERMOELECTRIC PROPERTIES OF THE COMPOSITES Bi2Te2,7Se0,3+Fe WITH FILLER INCLUSIONS OF CORE-SHELL TYPE
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(Not-set)
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Purpose of this work is to establish the features in the microstructure and thermoelectric properties of composites consisting of Bi2Te2.7Se0.3-based matrix and a Fe filler. The composition with a filler ...
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30.
PREPARATION, STRUCTURE AND IONIC CONDUCTIVITY OF THE M0.9Y0.1O2–?–BiScO3 (M = Zr, Ce)
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(Not-set)
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Samples of Zr0.9Y0.1O2–?–BiScO3 and Сe0.9Y0.1O2–?–BiScO3 solid solutions were obtained by solid-phase synthesis. X-ray diffraction revealed that the Zr0.9Y0.1O2–?–BiScO3 system corresponds to a tetragonal ...
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31.
ELECTRICAL CHARACTERISTICS OF BISMUTH-CONTAINING CERIUM OXIDE
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(Not-set)
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Ceramics Ce0.9Bi0.1O2 – ? was obtained by solid-phase synthesis. It is shown that the obtained samples have a cubic fluorite structure with the space symmetry group Fm3m. The electrical properties of the ...
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32.
INFLUENCE OF STRUCTURAL FACTORS ON THE MECHANICAL STRENGTH OF GLASS-CERAMIC PROPANTS
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(Not-set)
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The results of studying the influence of the chemical composition, material structure, crystallization features and isomorphic substitutions in pyroxene solid solutions of the augite type on the mechanical ...
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33.
ALGICIDAL AND BACTERICIDAL PROPERTIES OF COPPER-CONTAINING GLASSY PHOSPHATE COMPOSITIONS
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(Not-set)
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The paper presents the results of studies of the algicidal and bactericidal properties of copper-containing glassy phosphate composition (MSFC). It has been established that the presence of MSFC in aqueous ...
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34.
THE ACTIVITY OF CEMENT?S COMPOUNDS IN CO2-HYDRATION HARDENING CONDITIONS FROM THE THERMODYNAMIC POINT OF VIEW
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(Not-set)
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It was found that almost all the studied compounds could be carbonized under the influence of dry or wet carbon dioxide with the formation of calcium or magnesium carbonates. The equilibrium partial pressure ...
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35.
PIEZOCERAMICS TECHNOLOGIES: APPROACHES FOR ENVIRONMENTAL IMPACT MITIGATION
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(Not-set)
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The functional ceramic materials are broadly used in the electronic industry. Many of them are comprised of ferroelectric materials because of their outstanding piezoelectric and dielectric properties. ...
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36.
FEATURES OF CRYSTALLIZATION OF LITHIUM-ALUMINOSILICATE GLASS MICROSPHERES OBTAINED IN A HIGH-TEMPERATURE PLASMA FLOW
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(Not-set)
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... glass-ceramic structure based on ?-eucryptite-like solid solutions of LixAlxSi1 – xO2 is formed in microspheres, as in the initial glass, under the action of heat treatment, indicating the possibility ...
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37.
OBTAINING OF ALKALINE-FREE ALUMINOSILICATE GLASS CERAMICS BY SOL-GEL METHOD AND INVESTIGANING OF ITS PROPERTIES
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(Not-set)
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... phases, depending on the composition, are anorthites or their solid solutions, their formation temperatures have been established: hexagonal celsian is formed at a temperature of 1350 °C, monoclinic strontium ...
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38.
THE USE OF TECHNOGENIC METALLURGICAL RAW MATERIALS FOR THE PRODUCTION OF CERAMIC MATERIALS WITH AN ANORTHITE PHASE
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(Not-set)
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... to a decrease in the temperature of the formation of solid solutions and the anorthite phase. It has been established that with the addition of sludge up to 80 wt.% into the composition of the ceramic ...
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39.
OXIDE-CONTAINING MINERAL FIBERS: TYPES, METHODS OF PRODUCTION, APPLICATION AND MANUFACTURERS (REVIEW)
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(Not-set)
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The article provides an overview of mineral oxide fibers of various chemical composition: aluminosilicate, alumina, silica, bio-soluble, zirconium oxide fibers and others. Methods for producing discrete ...
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40.
Glass Composite Hardening with Multilayer Carbon Nanotubes Aligned with a Constant
Electric Field
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(Not-set)
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The effect of the electric field intensity and the percentage of multi-layer carbon nanotubes (MCNTs) on the strength of a composite consisting of unidirectional glass fibers has been studied. The results ...
