Hmelov, A. V.
Published in
Refractories and Industrial Ceramics
The effect of the formation of sintered TiC–ZrC solid solutions in mullite–WC–TiC–ZrC and mullite– c-BN–TiC–ZrC samples during spark plasma sintering of compositions at a compression load of 60 MPa in the range of 1200–1600°C on their phase composition, microstructure, relative density, open porosity, linear shrinkage, physicomechanical properties,...
Abyzov, A. M.
Published in
Refractories and Industrial Ceramics
This review provides the analysis of aluminum oxide, including the properties associated with its use, types of commercial products, production methods allowing for manufacturing aluminum oxide in dispersed state, in the form of polycrystalline ceramics and single-crystal products, as well as chemical aspects of the technological processes. Part 3 ...
Gol’tsov, A. B. Logachev, K. I. Averkova, O. A. Tkachenko, V. A.
Published in
Refractories and Industrial Ceramics
We seek constructive solutions aimed at the improvement of the efficiency of dust capture for an open-type local exhaust and at decreasing the dust losses into an aspiration network by a closed-type local exhaust (shelter) caused by the use of a vertical rotating cylindrical exhaust. We study exhausts in the form of slit-type gaps along the generat...
Vdovin, K. N. Pivovarova, K. G. Ponamareva, T. B. Feoktistov, N. A.
Published in
Refractories and Industrial Ceramics
The technique is presented for the determination of chemically bound water in metakaolin (with the mass fraction of water being within 0.5 and 5 %) by IR spectrometry at 900°C using the ELTRA (Germany) CW-800M infrared spectrometer. A single sample can be tested within 5 – 6 min, allowing for quality control of incoming metakaolin samples keeping d...
Klyushnikov, A. M. Selivanov, E. N. Pikulin, K. V. Belyaev, V. V. Lebed’, A. B. Udoeva, L. Yu.
Published in
Refractories and Industrial Ceramics
The composition and structure of periclase-chromite refractories contacting the coal–gas atmosphere of copper-sulfide-ore smelting furnaces were studied. Combined effects of high-temperature suspensions of enriched copper concentrate and SO2 altered the chemical composition of the refractory surface and inner layers. The impurity contents (wt%) rea...
Gilev, V. G. Kachenyuk, M. N.
Published in
Refractories and Industrial Ceramics
The synthesis of a Ti2AlN-based material by mechanical activation (MA) of a Ti–AlN powder mixture in a planetary ball mill followed by vacuum spark plasma sintering (SPS) is investigated. It was shown that the AlN/Ti ratio gradually decreases under mechanical activation. Data on the sample’s phase composition, density and hardness after SPS are giv...
Kuzin, V. V. Grigor’ev, S. N. Fedorov, M. Yu. Ostrikov, E. A.
Published in
Refractories and Industrial Ceramics
The following Acknowledgement is to be added to page 173 after the Conclusion: The work was financially supported by the Ministry of Education and Science of the RF under a State Task for Scientific Activity, Project No. 9.1372.2017/4.6.
Kashcheev, I. D. Zemlyanoi, K. G. Pavlova, I. A.
Published in
Refractories and Industrial Ceramics
The effect of natural additives on aluminosilicate sintering capacity is studied. It is demonstrated that addition of natural alkaline aluminosilicates with predicted viscosity and amount of melt makes it possible to prepare stronger ceramic materials.
Serov, G. V. Komissarov, A. A. Tikhonov, S. M. Sidorova, E. P. Kushnerev, V. Mishnev, P. A. Kuznetsov, D. V.
Published in
Refractories and Industrial Ceramics
Results are provided for an experimental study of the effect of deoxidation on the composition of nonmetallic inclusions in pipe steels melted in a vacuum induction furnace with a periclase lining. Thermodynamic calculations are made for oxygen activity within melts with lanthanum, cerium, aluminum, and yttrium for the metal of four melts. Conditio...
Apal’kova, G. D.
Published in
Refractories and Industrial Ceramics
It is established that addition of nano-dispersed iron oxide pigment in an amount of 0.25 – 0.50% provides intentional control of the chemisorption reaction of binder and filler during mixing facilitating an increase in carbon refractory density. It is shown that during addition of nano-additive to a carbon composition it is necessary to adjust the...
