AbstractAbout AuthorsReferences
Results of the study of microwave treatment of clay compositions with the UHF field when selecting the charge on the basis of low-melting loams of Kalininskoye and Khlystovskoye deposits and a modifying component are presented. The influence of the treatment of the clay composition with the UHF field on the strength property of burned products is shown. Compositions on the basis of galvanic sludge containing derivatives of aluminum oxide and additives containing derivatives of calcium oxide and magnesium – chalk and cake – waste of soda production were tested as a modifier. At the specified ratio of components for each composition of the modifying agent after the treatment of the prepared composition with the UHF field it is possible to obtain the significant improvement of strength of burned samples. Using the method of thermal and X-ray phase analyses, the difference in behavior of masses treated and untreated with the UHF field for compositions on the basis of Kalininskaya clay is shown. The connection of increasing the strength of burned samples with an increase in the fraction of a phase of sillimanite Al2SiO5 and the decrease of the crystallite size up to 30 nm is noted.
I.A. ZHENZHURIST, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, 420043, Russian Federation)
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2. Pushkarev O.I., Shumyacher V.M., Malginova G.M. Microwave processing of powders of refractory connections by electromagnetic field microwave oven. Ogneupory i tehnicheskaja keramika. 2005. No. 1, рр. 7–9. (In Russian).
3. Park. S.S., Meek T.T. Characterization of ZrO2–Al2O3 composites sintered in a 2,45 GHz electromagnetic field. J. of materials Science. 1991. V. 26, рр. 6309–6313.
4. Patent 2312733 RF. Sposob SVCh-termoobrabotki keramicheskih litejnyh form [Way of microwave heat treatment of ceramic casting molds]. Tyurin N.A., Zamorenov A.T., Semenov V.E., Deyev V.V. Published Bulletin No. 35. 20.12.2007.
5. Frosts O., Kargin A., Savenko G., Trebukh V., Vorobey And. Industrial application of microwave heating. JeLEKTRONIKA: Nauka, Tehnologija, Biznes. 2010. No. 3, pp. 2–6. (In Russian).
6. Wolves V.V., Barabash D.E., Lazukin V. V. Prospects of use of microwave radiations when laying the polimermodifitsirovannykh of asphalt concrete mixes. Stroitel’nye materialy [Construction Materials] 2009. No. 11, pp. 55–57. (In Russian).
7. Patent 2440295 RF. Process dlja sinteza chastic gliny [Process for synthesis of particles of clay.] Patel Mahesh Dakhyabkhai. Published Bulletin No. 2. 20.01.2012. (In Russian).
8. Prochina A.V., Shapovalov N.A., Latypova M.M. Modification of a surface of clay minerals with the high content of montmorillonite in an electromagnetic field of high frequency. Sovremennye naukoemkie tehnologii. 2011. No. 1, рр. 135–136. (In Russian).
9. Znamensky L.G., Varlamov A.S. Low-temperature synthesis of mullite in ceramics on zol-gel to process at electropulse impact on colloids. Ogneupory i tehnicheskaja keramika. 2014. No. 4–5, рр. 2–5. (In Russian).
10. Zhenzhurist I.A. The perspective directions of nanomodifying in construction ceramics. Stroitel’nye materialy [Construction Materials]. 2014. No. 4, рр. 36–39. (In Russian).