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1.
O. N. Popov
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(Information)
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2.
Jubilee of O. N. Popov
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(Information)
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3.
MODIFIED AlF3 AND LiF OXYFLUORIDE LITHIUM-SILICATE SCINTILLATION GLASS FOR NEUTRON DETECTION
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(Not-set)
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Lithium-silicate scintillation glasses doped with rare earth ions are promising materials for neutron detectors. Oxyfluoride glasses, due to modification by fluorine, have improved spectral and mechanical ...
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4.
THE PROCESS OF FORMATION OF CRYSTALLINE PHASES IN HEAT-RESISTANT CORDIERITE-CONTAINING ELECTRICAL MATERIALS
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(Not-set)
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The article presents the results of studies of heat-resistant insulating ceramics, as well as a mechanism of cordierite phase formation during single firing of compositions containing polymineral clay ...
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5.
GLASS-CRYSTALLINE COMPOSITE MATERIAL BASED ON SHUNGITE ROCK AND HELLEFLINTA
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(Not-set)
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A series of glass-crystalline composites were produced by heating at 1350 °C of powdered mixtures of helleflinta (quartz-feldspar waste from the Kostomuksha GOK) and 5, 10, 20 and 40 mass. % of shungite ...
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6.
SINTERING OF Mg2TiO4 CERAMICS OBTAINED BY THE METHOD OF MECHANOCHEMICAL ACTIVATION OF A MIXTURE OF INITIAL POWDERS
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(Not-set)
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In this work, the effect of mechanochemical activation time of mixtures of initial components on the sintering of magnesium titanate ceramics is studied. The apparent activation energy of sintering samples ...
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7.
TECHNOLOGY OF QUARTZ GLASS PRODUCTION FROM NATURAL AND SYNTHETIC RAW MATERIALS
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(Not-set)
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When comparing the optical characteristics of the obtained glasses in the UV region of the spectrum, it was shown that the glasses welded from KFK have greater transparency and higher transmission in the ...
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8.
PROSPECTS OF USING CLAYEY RAW MATERIALS OF THE STOLINSKIE KHUTORA DEPOSIT FOR PRODUCING BUILDING CERAMICS
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(Not-set)
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The technological properties of clay raw materials from the Stolinskiye Khutora deposit (Vidibor area, Brest region) were studied, which allowed it to classify according to GOST 9169–2021. It was found ...
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9.
CORUNDUM CERAMICS BASED ON RUSSIAN RAW MATERIALS WITH A REDUCED SINTERING TEMPERATURE
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(Not-set)
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The physico-mechanical properties of corundum ceramics based on domestic alumina grade Г-00 have been studied. It was found that the best mechanical strength indicators were obtained for ceramics fired ...
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10.
THE STUDY OF CERIUM DIOXIDE POWDER OBTAINED BY REVERSE DEPOSITION METHOD
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(Not-set)
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The processes of powder production of CeO2 by reverse deposition are investigated. The CeO2 content in the resulting products is 99.2 % by weight. The main phase is cerium dioxide with a cubic lattice. ...
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11.
STRUCTURE AND OPTICAL PROPERTIES OF SOLID SOLUTIONS OF THE ZrO2–Sc2O3 SYSTEM OBTAINED BY CO-PRECIPITATION
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(Not-set)
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The structure of ZrO2–Sc2O3 powders in the composition range from 1 to 15 mol. % Sc2O3 with the addition of 0.1 mol. % Eu2O3 as a spectroscopic probe, obtained by the coprecipitation method and heat-treated ...
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12.
INVESTIGATION OF THE CHEMICAL RESISTANCE OF OXYCHLORIDE LEAD BORATE GLASSES DOPED WITH NEODYMIUM AND THE STABILITY OF THEIR LUMINESCENT PROPERTIES IN THE CLIMATIC CONDITIONS OF SOUTH-EAST ASIA
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(Not-set)
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The chemical resistance of glasses in the PbCl2–PbO–B2O3–NdF3 system has been studied. Oxochloride lead-borate glasses have demonstrated good water resistance and alkali resistance, while low acid resistance. ...
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13.
THE COMBINED EFFECT OF SINTERING ADDITIVES MgO AND TEOS ON THE STRUCTURE AND OPTICAL PROPERTIES OF CERAMICS YAG:Yb, Er
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(Not-set)
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In this work, the effect of sintering additives based on magnesium oxide (MgO) and silicon oxide (TEOS) in concentrations from 0.02 to 0.10 wt. % and 0.2 to 0.5 wt. %, respectively, was investigated on ...
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14.
SYNTHESIS OF WOLLASTONITE-CONTAINING CERAMICS FROM NATURAL RAW MATERIALS OF THE REPUBLIC OF BELARUS
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(Not-set)
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Compositions of ceramic masses for obtaining wollastonite-containing ceramics using domestic carbonate and siliceous raw materials were developed. The features of the formation of the structure and phase ...
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15.
SYNTHESIS AND CHARACTERIZATION OF NEW PEROVSKITE-TYPE PbNaKNb2FeO9.5 CERAMIC
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(Not-set)
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Lead-containing perovskite of complex composition PbNaKNb2FeO9.5 (sp. gr. Pnma, a = 5.654 ± 0.003 ?, b = 7.977 ± 0.001 ?, c = 5.646 ± 0.003 ?) was synthesized for the first time by the solid-phase reaction ...
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16.
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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17.
Study Y2O3–Al2O3–SiO2 System Coating Interaction with Water Vapors and Na2SO4 at Temperatures up to 1450 °C
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(Not-set)
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For silicon carbide, when exposed to high temperatures in an oxygen atmosphere, passive and active oxidation processes are characteristic, therefore, materials based on SiC must be protected at temperatures ...
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18.
The Prospects for the Use of Clay Raw Materials From the "Krupeisky Sad" Deposit For Obtaining Heat-Resistant Ceramic Product
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(Not-set)
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The complex study of the mineralogical and chemical composition, as well as the technological properties of clay from the “Krupeisky Sad” deposit of the Republic of Belarus, was carried out. The features ...
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19.
On the Issue of Obtaining High-Density Corundum Ceramics with a Defect-Free POlished Surface and Low Roughness by the SPS Method
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(Not-set)
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The fundamental possibility of obtaining corundum ceramics with density close to theoretical, with defect-free polished surface, with low roughness, using as a starting material finely dispersed non-aggregated ...
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20.
Crystallisation in Strontiumalumosilicate Systems: Effect of Modifying Additives on Melting Characteristics and Crystallisation Behaviour
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(Not-set)
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The influence of a number of modifying additives: calcium fluoride, zinc oxide and boron oxide, on the melting and crystallization properties of strontium aluminosilicate glasses is considered. The influence ...
