Influence of vibrations on hydrodynamics of melt during Bridgman crystal growth
DOI:
https://doi.org/10.7242/1999-6691/2011.4.4.39Keywords:
detached Bridgman method, thermal vibrational convection, average flow generationAbstract
Numerical simulation of melt flows during germanium crystal growth by the detached Bridgman method has been carried out. The study was conducted within the context of preparing an experiment on board the FOTON satellite. To suit experimental conditions, the proposed mathematical model of crystal growth processes takes into account the detachment of the crystal from the crucible wall and the existence of an additional (technological) channel in the crucible. The dependence of the intensity and structure of the melt flow on the vibration intensity and the crucible shape is studied. Resonance frequencies are determined. The analysis of system dynamics in the near-resonance region shows that the vortex generated in the technological channel can reach the crystallization front.
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Lubimova T.P., Fajzrahmanova I.S. Cislennoe modelirovanie vliania magnitnogo pola na process vyrasivania kristallov vertikal’nym metodom Bridzmena // Vycisl. meh. splos. sred. - 2008. - T. 1, No 3. - S. 85-95.
Mel’kov A.U., Zinov’ev A.U., Romanenkov M.V., Romanenkova L.V., Avetisov I.H., Zarikov E.V. Rost monokristallov tellurida svinca metodom Bridzmena pri nizkocastotnom vibracionnom vozdejstvii na rasplav // Uspehi v himii i himiceskoj tehnologii. Sb. naucn. trudov. - M.: RHTU, 2003. - T. 17. - S. 66-80.
Lubimov D.V., Lubimova T.P., Parsakova A.N., Ru B., Cung-Ven Lan, Van-Cin U. Vlianie vysokocastotnyh vibracij na napravlennuu kristallizaciu binarnyh splavov // Poverhnost’. - 2009. - No 2. - S. 43-48.
Lubimova T.P., Parsakova A.N. Vlianie vrasatel’nyh vibracij na tecenia i teplomassoobmen pri vyrasivanii kristallov germania vertikal’nym metodom Bridzmena // Vycisl. meh. splos. sred. - 2008. -T. 1, No 1. - S. 57-67.
Regel L.L., Wilcox W.R. A review of detached solidification in microgravity // Microgravity Sci. Technol. - 1998. - V. 11, N. 4 - P. 152-166.
Benz K.W., Dold P. Crystal growth under microgravity: present results and future prospects towards the International Space Station // Journal of Crystal Growth. - 2002. - V. 237-239, Part 3. - P. 1638-1645. DOI
Bizet L., Duffar T. Contribution to the stability analysis of the dewetted Bridgman growth under microgravity conditions // Cryst. Res. Technol. - 2004. - V. 39, N. 6. - P. 491-500. DOI
Tatarchenko V.A. Shaped crystal growth. - Dordrecht; Boston: Kluwer, 1993. - 287 p.
Patzold O., Jenkner K., Scholz S., Croll A. Detached growth behaviour of 2-in germanium crystals // J. of Crystal Growth. - 2005. - V. 277, N. 1-4. - P. 37-43. DOI
Palosz W., Volz M.P., Cobb S., Motakef S., Szofran F.R. Detached growth of germanium by directional solidification // J. of Crystal Growth. - 2005. - V. 277, N. 1-4. - P. 124-132. DOI
Gershuni G.Z., Lyubimov D.V. Thermal vibrational convection. - John Wiley & Sons, 1998. - 358 p.
Najfe A. Vvedenie v metody vozmusenij. - M.: Mir, 1984. - 535 s.
Ruvinskij K.D., Frejdman G.I. Kvazipotencial’noe priblizenie dla opisania nelinejnyh gravitacionno-kapillarnyh voln na poverhnosti vazkoj zidkosti. - Gor’kij: IPF, 1988. - 809 s.
Niborg V. Akusticeskie tecenia // Fiziceskaa akustika / Pod red. U. Mezona, - M.: Mir, 1969. - T. 2, Cast’ B. - S. 302-377.
Ferziger J.H., Peric M. Computational methods for fluid dynamics. - Springer, 1999. - 389 p.
http://www-users.cs.umn.edu/~saad/software/SPARSKIT/index.html (data obrasenia: 10.05.2011).
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