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1.
CERAMIC FILTER SYSTEMS FOR INTEGRATED PURIFICATION OF HIGH-TEMPERATURE FLUE GASES FROM GLASS-MELTING FURNACES
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(Not-set)
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Against the backdrop of globally tightened environmental regulations, particularly in the Russian Federation, conventional gas-cleaning methods (cyclones, bag filters, electrostatic precipitators) used ...
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2.
PHASE FORMATION OF NEW PYROCHLORE TYPE CERAMICS Bi2.7Zn0.46Ni0.70Sb2O10 + ?
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(Not-set)
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The process of phase formation of new antimony pyrochlore (sp. gr. Fd-3m) Bi2.7Zn0.46Ni0.70Sb2O10 + ? during solid-phase synthesis from oxide precursors was studied. The process of solid-phase synthesis ...
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3.
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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4.
LASER MODIFICATION OF GAS-THERMAL COATINGS SPRAYED BY HVOF – A REVIEW
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(Not-set)
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An overview of the research results on the laser modification of coatings sprayed by HVOF is presented. The review includes information on laser post-treatment of mainly on tungsten carbide-based coatings. ...
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5.
X-RAY PHOTOELECTRON SPECTROSCOPY OF Bi2Ni1/2Co1/2Ta2O9 ± ? OXIDE CERAMICS
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(Not-set)
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Cubic pyrochlore of the composition Bi2Ni1/2Co1/2Ta2O9 ± ? (sp. gr. Fd-3m, a = 10.5261(8) ?) was synthesized for the first time from the corresponding oxides by the solid-phase reaction method. The complex ...
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6.
SYNTHESIS OF Zn AND Mn CODOPED BISMUTH TANTALATE PYROCHLORE-TYPE CERAMICS
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(Not-set)
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Ceramic samples Bi2ZnxMn1–xTa2O9.5–? were synthesized for the first time using the solid-phase synthesis method. It was established that the samples contain the main phase of cubic pyrochlore (sp. gr. ...
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7.
LOW TEMPERATURE SYNTHESIS OF TUNGSTEN SILICATES WITH PYROCHLORE AND TUNGSTEN BRONZE STRUCTURE
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(Not-set)
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Polyoxotungssilicates with the general formulas Cat4[SiW12O40] ? mH2O and Cat6[SiW11O39Ni(H2O)] ? nH2O, where Cat = Rb+, Cs+, (CH3)4N+, were synthesized. Using IR spectroscopy and X-ray phase analysis, ...
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8.
SYNTHESIS OF NANOCRYSTALINE Bi2Cr0.5Co0.5Nb2O9+? CERAMICS
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(Not-set)
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It has been shown that the modified sol-gel method (method Pechini) successfully synthesizes multielement oxides based on bismuth niobate, crystallizing in the pyrochlore structure type (space group Fd-3m). ...
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9.
OXIDATION OF Cr (III) TO Cr (VI) IN THE SYNTHESIS OF BISMUTH-CHROMIUM OXIDE CERAMICS
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(Not-set)
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Bismuth-containing chromates BixCrO1.5x+3 with a variable molar ratio of 1 ? n(Bi)/n(Cr) ? 38 were synthesized using
a ceramic method from Bi (III) and Cr (III) oxides. Depending on the n(Bi)/n(Cr) ratio, ...
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10.
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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11.
SYNTHESIS OF MULTICOMPONENT COMPOUNDS WITH A PIROCHLORE-TYPE STRUCTURE
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(Not-set)
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The possibility of solid-phase synthesis of multicomponent bismuth niobates and tantalates with pyrochlore-type structure (sp. gr. Fd-3m), containing atoms of transition 3d-elements in equimolar quantities ...
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12.
THE USE OF ALUMINUM-CONTAINING WASTE FROM THE PRODUCTION OF METALLIC CHROMIUM TO CREATE ACID-RESISTANT TILES
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(Not-set)
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The use of aluminum-containing slag from the production of metallic chromium in an amount of 40 % allows to obtain acid-resistant tiles with high physical, mechanical and chemical parameters at a firing ...
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13.
SYNTHESIS OF Bi2NiTa2O9 WITH A PYROCHLORE-TYPE STRUCTURE
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(Not-set)
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Nickel pyrochlore of the composition Bi2NiTa2O9 was synthesized by the solid-phase reaction method (sp. gr. Fd-3m, a = 10.5238 ?). The process of phase formation of nickel-containing bismuth tantalate ...
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14.
Influence of High-Alumina Sludge of Alkaline Etching on Technical Parameters and Phase Composition of Acid-Resistant Materials
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(Not-set)
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The introduction of 40 % calcined alkali-etched sludge into the ceramic mass of nanotechnogenic high-alumina raw materials makes it possible to obtain products with high physical, mechanical and chemical ...
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15.
Processes inside a Ceramic Material Based on Raw Materials with a High Fe2O3 Content in the Temperature Range 950 ; 1050 °С
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(Not-set)
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A ceramic brick M125 was obtained on the basis of substandard clay (loess-like loam) using overburden of pyrite copper-zinc ore at a firing temperature of 1000 ° C. At a firing temperature of a ceramic ...
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16.
The Phase Composition and Physico-Mechanical Properties at Different Temperatures of Ceramic Firing Earthquake-Resistant Bricks Using Ferroli
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(Not-set)
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Ceramic bricks based on low-melting clay and ferro-dust were obtained from self-decaying slags of low-carbon ferrochrome in the temperature range 950 - 1100 ° C, which have grades from M100 to M175, respectively. ...
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17.
Study of the Influence of Nanotechnogenic Raw Materials and Pyrophyllite on Orientation of Clay Particles and Water Permeability of Acid Resistant Materials
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(Not-set)
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The use of nanotechnogenic aluminum-containing raw materials and pyrophyllite in the compositions of ceramic masses for the production of acid-resistant materials helps to reduce the shrinkage anisotropy ...
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18.
Study of the Porosity Structure of a Ceramic Material of the Fortress Wall of Girona (Spain)
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(Not-set)
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The object of the research is ceramic material taken from the fortress wall of the city of Girona. The chemical composition of the test material showed an increased carbon content (13.1 & # 37;), which ...
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19.
Porosity Structure and Technical Properties of Ceramic Materials Based on Wastes of Nonferrous Metallurgy of Eastern Kazakhstan
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(Not-set)
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Clinker materials were obtained from non-ferrous metal waste, where the clay part of the tailings was used as the clay material. gravity of zircon-ilmenite ores (GZI), and feldspar concentrate (PShK) - ...
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20.
The Relationship of Phase and Element Chemical Compositions with the Longevity of the Barcelona Catholic Cathedral of the Holy Cross and St. Eulalia (Spain) More than 600 Years Old
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(Not-set)
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Elemental chemical composition showed an increased mass content of calcium (Ca = 5.9 & # 37;) in the samples, which contributes to the formation of anorthite, which increases the strength of products, ...
