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21.
INFLUENCE OF THE RARE-EARTH FLUORIDES ADDITIVE ON THE STRUCTURE AND PROPERTIES OF THE BOROPHOSPHATE GLASSES
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(Not-set)
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In this work, we investigated borophosphate glasses with additions of 0.5 to 1.5 mol. % of rare-earth fluorides LnF3 (Ln = La, Ce, Nd), considered as simulants of radioactive waste from the now developing ...
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22.
PREPARATION OF FINE MAGNESIUM ALUMINATE SPINEL POWDER BY SHS: EFFECT OF NaCl MINERALIZER ON PHASE COMPOSITION AND DISPERSITY
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(Not-set)
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Magnesium aluminate spinel in a submicron state was obtained for the first time directly in a combustion wave by self-propagating high-temperature synthesis (SHS) from aluminum and magnesium oxides, using ...
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23.
CERAMICS BASED ON POWDERS SYNTHESIZED FROM CALCIUM NITRATE AND SILICIC ACID PREPARED VIA ION EXCHANGE METHOD
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(Not-set)
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... with the addition of an aqueous solution of ammonia. Solutions of silicic acid prepared via the dynamic ion exchange method passing an aqueous solution of sodium silicate Na2SiO3 through a column with ...
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24.
LUMINESCENT WAVEGUIDES IN BI-DOPED QUARTZOID GLASS, WRITTEN BY FEMTOSECOND LASER PULSES
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(Not-set)
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The formation of waveguides in the bulk of sintered nanoporous glass pre-impregnated in a bismuth nitrate solution was demonstrated. The influence of laser irradiation regimes on the refractive index change ...
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25.
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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26.
INVESTIGATION OF THE STRUCTURE OF A TRANSPARENT GAHNITE-BASED GLASS-CERAMICS IN THE Na2O–ZnO–MgO–Al2O3–SiO2 SYSTEM BY TRANSMISSION ELECTRON MICROSCOPY
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(Not-set)
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... glass-ceramic and allows the usage of ion exchange for further improve their mechanical properties. In this work, the submicrostructure of ZMAS glass-ceramic with sodium oxide additives in a transparent ...
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27.
HETEROVALENT SUBSTITUTION OF ZIRCONIUM IN NASICON SOLID SOLUTION (Na3Zr2Si2РO12)
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(Not-set)
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Fe-substituted ceramic materials of the NASICON family, corresponding to the generally accepted formula Na3+yМ(III)yZr2–ySi2PO12, with a dopant concentration from 5 to 20 mol. % were studied. Doping changes ...
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28.
DEVELOPMENT OF TECHNOLOGY FOR THE SYNTHESIS OF HEAT-INSULATING GLASS-CRYSTALLINE MATERIALS BASED ON DRILLING MUD BY HYDRATE FOAMING
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(Not-set)
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... synthesized samples was conducted. The optimal composition for synthesizing sludge was determined, which includes 80 % of drilling mud, 15 % of sodium hydroxide, 5 % of sodium tetraborate, 10 % of water, ...
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29.
SYNTHESIS OF ALUMINUM-MAGNESIUM SPINEL FROM XEROGELS OBTAINED FROM ALUMINUM AND MAGNESIUM CHLORIDES AND NITRATES IN THE PRESENCE OF CITRIC ACID
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(Not-set)
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The effect of a combination of water-soluble magnesium and aluminum salts on the physicochemical properties of the obtained aluminomagnesium spinel was studied. It was shown that the formation of aluminomagnesium ...
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30.
ASSESSMENT OF THE EFFECT OF LITHIUM CHLORIDE ON THE PROPERTIES OF BOROPHOSPHATE GLASS DURING THE IMMOBILIZATION OF RADIOACTIVE WASTE FROM PYROCHEMICAL PROCESSING OF SPENT NUCLEAR ...
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(Not-set)
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... of sodium ions into a solution.
The performed studies confirm the possibility of using glasses of the selected composition as a matrix for immobilization of the spent electrolyte based on lithium chl ...
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31.
THERMOSTIMULATED FORMATION OF SILVER NANOAGGREGATES AND THEIR EFFECT ON THE PHOTOLUMINESCENCE OF Nd3+ IONS IN THE BARIUM-PHOSPHATE GLASS
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(Not-set)
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Phosphate glasses heavily doped with Nd3+ ions are critical components in developing efficient near-infrared laser systems. This study investigates the luminescence sensitization of Nd3+ ions in BaO-P2O5 ...
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32.
INORGANIC FOAMED THERMAL INSULATION MATERIALS BASED ON MINERAL SILICA-CONTAINING RAW MATERIALS
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(Not-set)
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Thermal insulation and composite foamed inorganic materials with a reduced thermal conductivity of 0,064…0,076 W/(m·K) have been developed on the basis of technogenic silica-containing raw materials. The ...
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33.
SYNTHESIS AND PROPERTIES OF CO-DOPED Sm3+/Gd3+ GLASS COMPOSITION B2O3–GeO2–Bi2O3
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(Not-set)
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Within the scope of the study, glasses co-doped with Sm3+/Gd3+ in the B2O3–GeO2–Bi2O3 system were synthesized,
covering compositions of 40B2O3–40GeO2–(15…17)Bi2O3–(3…2)Sm2O3–(2…1)Gd2O3 and 42,5B2O3–42,5GeO2–(11,25…12,75)Bi2O3–(2,25…1,50)Sm2O3–(1,500…0,075)Gd2O3. ...
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34.
INFLUENCE OF WASTE GLASS POWDER ON THE PROPERTIES OF CERAMIC STAB BASED ON LESS ROCK
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(Not-set)
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It was found that it is possible to obtain high-strength ceramic paving stones based on loess rocks with the addition of 20 % glass waste powder. At the same time, the amount of moisture in the ation should ...
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35.
ION EXCHANGE HARDENING OF GLASSES OF THE ZnO–MgO–Al2O3–SiO2 SITALL-FORMING SYSTEM WITH AN INCREASED CONTENT OF Na2O
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(Not-set)
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... with 7 mol. % of Na2O treated duration for 72 h reaches 900 HV. Possibility of ion-exchange process usage with glass-ceramics, obtained from glasses of ZMAS system modified with sodium oxide, has been ...
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36.
FIXATION OF THE OPTICAL FIBER IN THE CONNECTOR USING HYDROGEL
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(Not-set)
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A method of fastening optical fiber in a quartz connector with a sodium polysilicate hydrogel obtained in a cylindrical gap between the connector and the fiber due to the alkaline decomposition of quartz ...
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37.
JOINT PROCESSING OF QUARTZ-LEUCOXENE CONCENTRATE AND BRUCITE CONTAINING WASTE FROM THE PRODUCTION OF REFRACTORY MATERIALS TO OBTAIN COMPLEX COAGULANTS
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(Not-set)
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The volumes of large-tonnage mineral waste generation cause serious concern from the side of environmental supervision. Most of the mineral waste is a valuable secondary raw material, but the lack of integrated ...
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38.
PROPERTIES OF HOLLOW GLASS MICROSPHERES PRODUCED IN A PROPANE-AIR FLARE
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(Not-set)
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Hollow glass microspheres from sodium borosilicate glass were obtained by high-temperature method, the composition of mass%: 10 Na2O; 8 CaO; 0,3 MgO; 0,2 Al2O3; 9 B2O3; 0,5 SO3; 72 SiO2. It is established ...
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39.
INVESTIGATION OF THE STRUCTURE AND INFLUENCE OF ION EXCHANGE ON THE MICROHARDNESS OF LOW-ALKALI TRANSPARENT GANITE GLASS-CERAMICS
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(Not-set)
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Transparent glass-ceramics are attracting more and more attention as a material for protecting the screens of electronic devices. The paper considers the possibility of carrying out ion-exchange of transparent ...
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40.
PHASE TRANSFORMATIONS UNDER THE ACTION OF FEMTOSECOND PULSES IN THE GLASS-CERAMIC OF ZnO–MgO–Al2O3–SiO2 SYSTEM
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(Not-set)
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The effect of femtosecond laser micro-treatment in thermal and non-thermal modes on the structure of transparent glass-ceramic based on the ZnO–MgO–Al2O3–SiO2 system, characterized by increased mechanical ...
