Tarasovskii, V. P. Shlyapin, A. D. Omarov, A. Yu. Vasin, A. A. Kormilitsin, M. N.
Published in
Refractories and Industrial Ceramics
Properties are determined for electrocorundum grinding grits and powders of different grain size from various producers. Powder particle size distribution and also rheological properties are determined by a static method; bulk and tapping densities, time for emergence from a funnel, natural repose angle, flow criteria, compactability and degree of ...
Bazhin, P. M. Stolin, A. M. Mikheev, M. V. Kovalev, I. D.
Published in
Refractories and Industrial Ceramics
The SHS-grinding method was employed to prepare molybdenum disilicide powder material through the reduction of molybdenum oxide by aluminum and silicon. It is shown that the mechanical action applied to the material after the passing of an SHS-combustion wave through it can destroy the synthesized briquette created by the conventional self-propagat...
Dyakin, P. V. Pivinskii, Yu. E. Kolobov, A. Yu.
Published in
Refractories and Industrial Ceramics
Rheological properties are described both for the initial (basic) bauxite composite HCBS and the same HCBS with 15% SiC, as well as with the addition of 1 and 2% of Si. The effect of adding metallic silicon is investigated, which decreases the sintering temperature and promotes formation of closed porosity. It is established that in materials conta...
Voronkov, M. E. Brykov, A. S. Nekrasova, O. K. Pavlov, S. S.
Published in
Refractories and Industrial Ceramics
It is shown that the pyrocatechin (1, 2-dihydrohybezene) in an amount of 0.005 – 0.010 wt.% solid components has a pronounced plasticizing effect on mixtures of polyfraction corundum filler and colloidal SiO2-solution binder, stabilized with ammonia ions, intended for preparing cement-free refractory concrete. Self-consolidating refractory composit...
Ivanov, D. A. Sitnikov, A. I. Val’yano, G. E. Borodina, T. I. Shlyapin, S. D.
Published in
Refractories and Industrial Ceramics
Production aspects are considered for preparing porous ceramic based on α-Al2O3 using the effect of zonal compaction during powder workpiece sintering of very fine combustion products in air of flaky aluminum powder PAP-2 particles. It is shown that formation of a porous structure in sintered material proceeds by a local breakage mechanism through ...
Kuzin, V. V. Grigor’ev, S. N. Fedorov, S. Yu.
Published in
Refractories and Industrial Ceramics
As a result of life tests for different ceramic tools during turning alloy M-NP over a wide range cutting regimes their good operating properties are revealed in fields of using M05-M20. Established features are systematized and introduced into an information recovery system making it possible to select ceramic tools in the stage of production prep...
Gritskevich, M. S. Logachev, K. I. Averkova, O. A. Tkachenko, V. A.
Published in
Refractories and Industrial Ceramics
We study the method of catching of pollutants with the use of a local suction unit placed over an impermeable plane and in the closed domain of an aspiration hood. The suction unit is screened by a circular swirling jet. The results of investigations of the behavior of dust particles in the air flow near the suction unit are presented.
Bogdanov, S. P. Sychev, M. M. Lebedev, L. A.
Published in
Refractories and Industrial Ceramics
Systems of multilevel organized structures are proposed for examining ceramic products with a periodic topology. Structural changes on various scales were studied in corundum ceramics produced by 3D-printing during annealing at 1700°C. Changes of the body geometry, layer structure of the printed sample, material grain structure, and α-Al2O3 grain c...
Zubashchenko, R. V.
Published in
Refractories and Industrial Ceramics
Refractory heat-insulating materials produced in Russia are characterized. The thermal stability of high-alumina heat-insulating materials filament-reinforced based on mullite-silica glass fiber is investigated. Thermal stability data of products with crystallized and non-crystallized matrixes is presented.
Babakhanova, Z. A. Aripova, M. Kh.
Published in
Refractories and Industrial Ceramics
Slag-resistant highly refractory alumina-periclase-carbon ceramic materials are synthesized on the basis of electrocorundum (Kazogneupor), Zinel’bulaksk (Uzbekistan) talc, and enriched graphite concentrate (Uzbekistan). The crystal structure of the material is represented by corundum and spinel. Ceramic specimen refractoriness is above 1800°C, dens...
