Analytical study of the thermal conductivity processes at ceramic sintering

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dc.contributor.authorGrechanovskaya, M.
dc.date.accessioned2022-11-04T18:02:24Z
dc.date.available2022-11-04T18:02:24Z
dc.date.issued2022
dc.descriptionGrechanovskaya M. Analytical study of the thermal conductivity processes at ceramic sintering / M. Grechanovskaya ; advisors K. Heorhiiesh, N. Volgusheva // Black Sea Science 2022 : proc. of the Intern. Competition of Student Scientific Works / Odesa National University of Technology ; eds. B. Yegorov, M. Mardar [et al.]. – Odessa : ONUT, 2022. – P. 540–552 : fig. – Ref.: 22 tit.uk_UA
dc.description.abstractThe analytical study of the processes of thermal conductivity at high intensity heating of dense bodies, similar to clay and plastic materials, was conducted. The conditions of applicability for the hyperbolic and parabolic equation of thermal conductivity for the composition of mathematical models of high intensity heating were explored. It was found that for the small Fourier numbers, the solution of hyperbolic equation of thermal conductivity makes it possible to determine thickness of the thermal layer and its change over time. Based on the example of manufacturing technical ceramics, it was demonstrated that the possible heating rates are considerably below the boundary rate, within which the velocity of heat propagation may be accepted as infinitely high. The conclusion was drawn that in the course of construction of mathematical models for the processes of thermal treatment in the technologies for the production of technical ceramics and the products similar to them in the intensity of heating, it is rational to take the thermal conductivity equation of parabolic type as the basis. The analytical solution, which makes it possible to calculate temperature field of the semi-restricted array under conditions of microwave heating, was obtained on the basis of the equation of thermal conductivity with internal heat sources, taking into consideration heat exchange with the environment. Results of computational experiment testify to the correctness of the proposed dependency.uk_UA
dc.identifier.urihttps://card-file.ontu.edu.ua/handle/123456789/23795
dc.subjectthermal conductivityuk_UA
dc.subjectparabolic typeuk_UA
dc.subjecthyperbolic typeuk_UA
dc.subjectvelocity of heat propagationuk_UA
dc.subjectmicrowave heatinguk_UA
dc.titleAnalytical study of the thermal conductivity processes at ceramic sinteringuk_UA
dc.typeArticleuk_UA
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