Abstract
The possibility of growing crystals of non-circular cross-section by using the floating zone technique is considered, basing the analysis on the isothermal liquid bridge model, and restricting the study to a linear asymptotic analysis.
An almost square initial seed is considered in more detail, although the analysis is general and can be applied to other initial shapes, not only of the seed but also of the supply rod, that can be of any cross-section.
The influence of non-circular seed and/or feed cross-section shape, and of a possible axial acceleration typical of microgravity platforms (sounding rockets and space labs), on both the liquid interface shape and the solid grown shape, are analysed, including the stability limits by breaking of the molten bridge.
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References
Lan, C. W., Kou, S.: "Shortened floating zone crystal growth under normal gravity". J. Crystal Growth 119, 281, 291 (1992).
Cröll, A., Kaiser, T., Schweizer, M., Danilewsky, A. N., Lauer, S., Tegetmeier, A., andBenz, K. W.: "Floating-zone and floating-solution-zone growth of GaSb under microgravity". J. Crystal Growth 191, 365, 376 (1998).
Martínez, I., Cröll, A.: "Liquid bridges and floating zones". ESA SP-333, 135, 142 (1992).
Martínez, I., Eyer, A.: "Liquid bridge analysis of silicon crystal growth experiments under microgravity". J. Crystal Growth 75, 535, 544 (1986).
Boucher, E. A., Evans, M. J.B.: "A liquid-bridge model for the float-zone processing of materials". J. Chem. Soc. Faraday Trans. I. 81, 2787, 2796 (1985).
Martínez, I., Perales, J. M.: "Mechanical behaviour of liquid bridges in microgravity in Physics of Fluids in Microgravity". in "Physics of Fluids in Microgravity", R. Monti (Ed.), Gordon & Breach, (to appear in 2002).
Meseguer, J., Perales, J. M., Martínez, I., Bezdenejnykh, N. A., Sanz, A.: "Hydrostatic Instabilities in Floating Zone Crystal Growth Process". Current Topics in Crystal Growth Research 5, 27, 42 (1999).
Rossolenko, S. N., Zhdanov, A. V.: "Equilibrium shapes of liquid menisci subjected to gravity force and surface tension". J. Crystal Growth 104, 8, 13 (1990).
Pet’kov, I. S., Red’kin, B. S.: "Calculation of the stationary cross-section form of nonaxisymmetrical crystals growing from the melt". J. Crystal Growth 131, 598, 606 (1993).
Tatarchenko, V. A., Uspenski, V. S., Tatarchenko, E. V., Nobot, I. Ph., Duffar, T., Roux, B.: "Theoretical model of crystal growth shaping process". J. Crystal Growth 180, 615, 626 (1997).
Hamidi, M., Rodot, H.: "Experimental determination of the growth angle: application to silicon". Revue de Physique Appliquée 18, 75, 80 (1983).
Martínez, I., Sanz, A., Perales, J. M., Meseguer, J.: "Freezing of a Long Liquid Column on the Texus-18 Sounding Rocket Flight". ESA Journal 12, 483, 489 (1988).
Bezdenejnykh, N. A., Meseguer, J.: "On the use of liquid bridges as accelerometers". Microgravity Sci. Technol. 9, 62, 69 (1996).
Perales, J. M., Meseguer, J., Martínez, I.: "Minimum Volume of Axisymmetric Liquid Bridges between Unequal Disks in an Axial Microgravity Field". J. Crystal Growth 110, 855, 861 (1991).
Martínez, I, Meseguer, J., Perales, J. M.: "Analytical Modelling of Floating Zone Crystal Growth". Adv. Space Res. (to appear in 2002).
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Martínez, I., Meseguer, J. & Perales, J.M. Simulation of non-axisymmetric floating zone crystal growth under microgravity. Microgravity sci. Technol. 13, 3 (2002). https://doi.org/10.1007/BF02872065
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DOI: https://doi.org/10.1007/BF02872065