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1.
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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2.
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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3.
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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4.
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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5.
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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6.
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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7.
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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8.
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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9.
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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10.
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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11.
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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12.
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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13.
Influence of various coal preparation waste on mechanical behavior and phase composition of heat insulation materials
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(Utilization of waste)
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Heat-insulating ceramic materials were obtained on the basis of coal preparation waste: flotation waste of coal preparation of GOF "Tomusinskaya", slimes of flotation coal preparation (coal slimes ...
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14.
Use of aluminous waste from nonferrous industry in ceramic clinker production
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(Utilization of waste)
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Compositions of ceramic masses for the production of clinker products based on unenriched kaolin and nanotechnogenic raw materials in the form of alkaline etching sludge of aluminum and its alloys of the ...
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15.
Phase composition and porous structure of centenarian ceramic bricks found in a catholic church, in Iviron convent and Rozhdestvenskaya church in Samara
region
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(At the enterprises and institutes)
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It was determined by X-ray phase and IR spectroscopic methods of analysis that the strength properties of ceramics, which served for more than 100 years in the buildings of the Catholic Church, the Iversky ...
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16.
Phase composition of heat insulating materials made with coal slate waste
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(Utilization of waste)
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Heat-insulating ceramic materials based on waste oil shale without the use of traditional raw materials have been obtained. The character of phase transformations during firing of ceramic materials has ...
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17.
Correlation of phase composition and longevity of 800-year and older ceramic brick based on Kazan kremlin
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(At the enterprises and institutes)
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Studies have shown that mullite crystallizes in the brick of the Kazan Kremlin in the form of primary ("flaky") mullite, pseudomorphs of glass with acicular mullite over feldspar, and pseudomorphs ...
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18.
Designing particularities of the dosing-mixing lines dust-exhaust systems
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(Equipment)
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The features of the design of the aspiration system for dosing and mixing lines are considered and various technical solutions are presented that increase the efficiency of the joint operation of aspiration ...
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19.
The structure of borosilicate glass determined from Raman spectroscopy data
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(Science for glass production)
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Glasses of the Na 2 O - В 2 O 3 - SiO 2 system with a content of В 2 O 3 from 20 to 40%. It was shown that with a gradual increase in boron oxide content, the silicate network undergoes depolymerization, ...
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20.
Engineering of the aspiration systems for the batching plant of glass-manufacturing works
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(Environmental protection)
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The main, most common at the moment types of dust-cleaning equipment for composite shops of glass factories and variants of aspiration systems used in the projects of JSC "Stromizmeritel" are considered. ...
