-
1.
OXIDATION OF Cr (III) TO Cr (VI) IN THE SYNTHESIS OF BISMUTH-CHROMIUM OXIDE CERAMICS
-
(Not-set)
-
... bismuth oxide n(Bi2O3)/n(Cr2O3) ? 3. It is noteworthy that calcination
of chromium (III) oxide under similar conditions does not lead to the oxidation of chromium ions. X-ray phase analysis confirmed ...
-
2.
PREPARATION OF A METAL-CERAMIC COMPOSITE BASED ON ALUMINUM OXIDE BY INTERNAL OXIDATION
-
(Not-set)
-
The possibilities of obtaining metal-ceramic materials of the composition Al2O3–Al by liquid-phase oxidation of aluminum by purging the melt with oxygen are considered. The manufacturability of this process ...
-
3.
Mechanochemical Oxidation of Aluminum. The Formation of the Porous Structure of Hydroxides and Oxides of Aluminum
-
(At the enterprises and institutes)
-
A comparison is made of the main characteristics of aluminum oxides and hydroxides obtained by mechanochemical oxidation of aluminum powder, both in the initial state and after their heat treatment in ...
-
4.
BOROSILICATE ENAMEL WITH INCREASED CHEMICAL RESISTANCE FOR STEEL PIPES
-
(Not-set)
-
The paper presents the results of a study on the development of a primer-free enamel frit with increased chemical resistance to acids and alkalis, designed to protect steel pipelines. Zinc oxide was introduced ...
-
5.
INVESTIGATION OF THE INFLUENCE OF YTTERBIUM OXIDE ON PHASE COMPOSITION AND SHS PARAMETERS OF COMPOSITIONS BASED ON SILICON NITRIDE
-
(Not-set)
-
Using the method of self-propagating high-temperature synthesis (SHS) SHS compositions based on the Si3N4–Yb2O3 system were obtained. Synthesis by combustion was carried out in a nitrogen atmosphere at ...
-
6.
THE NUCLEATION EFFECT OF PbSe ADDITIVE ON Bi2Sr2CaCu2Oδ GLASS CERAMICS
-
(Not-set)
-
... equations for nucleation kinetics to uncover the activation energies and Avrami parameters. Thermogravimetric analysis revealed that the amount of oxidation in the structure increased with increasing PbSe-doping ...
-
7.
OXIDE-CONTAINING MINERAL FIBERS: TYPES, METHODS OF PRODUCTION, APPLICATION AND MANUFACTURERS (REVIEW)
-
(Not-set)
-
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 ...
-
8.
Study Y2O3–Al2O3–SiO2 System Coating Interaction with Water Vapors and Na2SO4 at Temperatures up to 1450 °C
-
(Not-set)
-
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 ...
-
9.
Glass Layer Forming in Ceramic Matrix Composite after Impact of High-Enthalpy Flow
-
(Not-set)
-
The structure of the surface layer of ceramic composite materials (CMC) of the compositions HfB 2 & # 8211; SiC and SiC & # 8211; TiC after exposure to a flow of dissociated air has been investigated. ...
-
10.
Of B2O3 and P2O5 Additives on Silicate and Glass Formation at Srtontium Aluminosilicate Glass Melting
-
(Not-set)
-
the results of studies on reducing the melting temperature of strontium aluminosilicate glass by introducing boron and phosphorus oxides into the charge are presented, the main physicochemical processes ...
-
11.
Morphology and Optical Properties of Fluorine and Copper Doped Titanium Dioxide Spatially Ordered Films
-
(Not-set)
-
The results of studying the morphology and optical properties of copper and fluorine-doped ceramic TiO 2 films synthesized using electrolytic and solvothermal methods are presented. It is shown that ...
-
12.
The Investigation of the Ceramic Material Based on Lanthanum Hexaboride Structural-Phase State
-
(Science for ceramic production)
-
The structure and phase composition of lanthanum hexaboride ceramic material samples prepared by sintering are investigated. It was found that the formation of a high-quality consolidated structure with ...
-
13.
Calcium aluminates formation features in mechanochemical inter-action in Са(ОН)2-Аl-H2O system
-
(At the enterprises and institutes)
-
The features of the processes of mechanochemical interaction in the Ca (OH) 2 -Al-H 2 O system were investigated using the methods of X-ray phase, X-ray structural and synchronous thermal analysis. ...
-
14.
Production and thermal stability of nanodisperse bicomponent materials in SnO2?СеO2 system
-
(Science for ceramic production)
-
... Boronin AI, Korenev SV, Novopashin SA Catalysts for low-temperature CO oxidation based on Pd / CeO2 - SnO2 composites synthesized under nonequilibrium conditions // Proceedings of the II Russian Congress ...
-
15.
Compact ceramics based on aluminum oxynitride obtained with SHS-metallurgy method
-
(Science for ceramic production)
-
Samples in the form of ingots of aluminum oxynitride (alona) Al 5 O 6 N were obtained by SHS metallurgy using thermite-type mixtures. The experiments were carried out in SHS reactors at an initial ...
-
16.
Peculiarities of formation and thermal stability of MnOx-CeO2 disperse systems
-
(At the enterprises and institutes)
-
The features of the formation and thermal stability of MnO x -CeO 2 nanodispersed systems have been investigated. The composition, structure, charge state and porosity of the obtained systems were ...
-
17.
Mechanism of liquid-phase sintering of silicon carbide and silicon nitride with oxide activators
-
(Science for ceramic production)
-
The mechanism of sintering and the features of structure formation in liquid-phase sintered silicon carbide and sintered silicon nitride have been investigated. The formation of the core structure (grains ...
-
18.
Formation of nickel, cobalt and aluminium-based porous materials in self-propagating high temperature vacuum synthesis
-
(Science for ceramic production)
-
As a result of calculating the influence of the volumetric effect of a chemical reaction on the porosity of the formation of the final product for the Al-Ni-Co system in vacuum, it is shown that the synthesized ...
-
19.
Composite glass-metal coatings for protection of beryllium under high temperatures
-
(At the enterprises and institutes)
-
The creation of a reliable system for protecting beryllium from oxidation and sublimation of its toxic oxides during high-temperature heating is considered. The results of studying the kinetics of beryllium ...
-
20.
Protective technological coatings for thermal treatment of high-strength structural steels (VKS)
-
(Coatings. Enamels.)
-
Developed "universal" frit-free coatings for heat treatment of high-strength steels of the VKS type. The kinetics of oxidation of VKS steel with and without coating has been investigated. The efficiency ...
