Инд. авторы: Gurov V.V., Kirdyashkin A.G.
Заглавие: Influence of thermal boundary conditions on heat and mass transfer during horizontal directional crystallization
Библ. ссылка: Gurov V.V., Kirdyashkin A.G. Influence of thermal boundary conditions on heat and mass transfer during horizontal directional crystallization // Minerals. - 2020. - Vol.547. - Art.125797. - EISSN 2075-163X.
Внешние системы: РИНЦ: 45505794;
Реферат: eng: We present the results of the experimental study on heat and mass transfer in horizontal directional crystallization of high-melting oxide compounds. We considered the case of heating of the rear part of the growth container by means of the heater radiation through the slot in the platform of the container. It is established that such heating causes significant changes of mass transfer in the central part of the liquid layer. As a result, a stable structure is formed that ensures the flow of liquid from the back of the container to the crystallization front. A more effective mixing of the melt and a more advantageous shape of the crystallization front is achieved. The results of the model experiments were checked and proved by the growth process of chrysoberyl crystals doped by the chromium oxide.
Ключевые слова: A2. Growth from melt; A1. Mass transfer; A1. Heat transfer; A1. Fluid flows; A1. Directional solidification; A1. Convection;
Издано: 2020
Физ. характеристика: 125797
Цитирование: 1. Brandon, S., Modelling Simul. Mater. Sci. Eng., 5, 1997, 259. 2. Lan, C.W., Chen, M.K., Liang, M.C., J. Crystal Growth, 187, 1998, 303. 3. Edwards, K., Derby, J.J., J. Crystal Growth, 179, 1997, 120. 4. Liang, M.C., Lan, C.W., J. Crystal Growth, 180, 1997, 587. 5. J.E. Simpson, H.C. de Groh, S.V. Garimella, An experimental and computational study of directional solidification in transparent materials. Invited paper to Symp. On Fluid Flow Phenom. In Metals Processing, 1999 TMS Annual Meeting, San Diego, Feb., 1999. 6. Lan, C.W., Su, M.C., Liang, M.C., J. Crystal Growth, 208, 2000, 717. 7. Gurov, V.V., Tsvetkov, E.G., Kirdyashkin, A.G., J. Crystal Growth, 256, 2003, 361. 8. Kh. S. Bagdasarov, Crystallization from the melt, in: B.K. Vainshtein, A.A. Chernov, L.A.Shuvalov (Eds.) Modern crystallography, V.3, Nauka Publishing House, Moscow, 1980, pp. 337-374 (in Russian). 9. Gurov, V.V., Tsvetkov, E.G., J. Crystal Growth, 310, 2008, 229. 10. M.V. Klassen-Neklyudova, K. S. Bagdasarov, (Eds.), Ruby and Sapphire, Nauka Publishing House, Moscow, 1974, pp. 20-35 (in Russian). 11. Kirdyashkin, A.G., Kirdyashkin, A.A., Dokl. Akad. Nauk, 362, 1998, 404 (in Russian). 12. Schlichting, H., Gersten, K., Boundary Layer Theory. 2000, Springer-Verlag, Berlin-Heidelberg, 799. 13. Gurov, V.V., Kirdyashkin, A.G., J. Appl. Mech. Tech. Phys., 53, 2012, 83. 14. M.A. Maurakh, B.S. Mitin, Liquid Refractory Oxides (Metallurgiya, 1979), 288 (in Russian). 15. Gurov, V.V., Kirdyashkin, A.G., J. Appl. Mech. Tech. Phys., 57, 2016, 646.