Abstract
A melt-extraction technique, using a sharpened molybdenum wheel, has been used to produce fine oxide ceramic fibres. Wetting of the molybdenum wheel by molten ceramic is a key parameter in the melt-extraction process. Two types of fibre are generally obtained, depending on the extraction speed. At very low wheel speed, fine and uniform fibres of high quality are produced. However, when the wheel speed exceeds a critical velocity, Rayleigh waves are formed on the free surface of the fibres. Moreover, the average fibre thickness first increases with the wheel velocity, then passes through a maximum, decreasing at high velocity. This thickness variation is discussed in terms of both surface tension and viscosity of the liquid ceramics.
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References
P. Bracke, H. Schurmans and J. Verhoest, “Inorganic Fibers and Composite Materials, a Survey of Recent Development” (Pergamon International Information Incorporation, Netherlands, 1984) pp. 11,35,49.
K. K. Chawla, “Composite Materials-Science and Technology” (Springer, New York, 1987) p. 102.
R. E. Maringer, A. Rudnick and C. E. Mobley, US Pat. 3838 185, 24 September 1974.
R. E. Maringer and C. E. Mobley, J. Vac. Sci. Technol. 11 (1974) 1067.
O. M. Stewart, R. E. Maringer and C. E. Mobley, US Pat. 3812901, 28 May 1974.
R. E. Maringer and C. E. Mobley, in “Proceedings of 3rd International Conference on Rapidly Quenched Metals”, RQ 78, edited by B. Cantor (The Metals Society, London, 1978) p. 49.
L. A. Schwartzkopf, J. E. Ostensen and D. K. Finnemore, US Pat. 4970194, 13 November 1990.
L. A. Schwartzkopf, US Pat. 5053 384, 1 October 1991.
P. Bosswell, D. Richter, T. Berce and G. Negaty-Hindi, US Pat. 5067554, 26 November 1991.
J. O. Strom-Olsen, G. Rudkowski, P. Rudkowska, M. Allahverdi and R. A. L. Drew, Mater. Sci. Eng. A179/A180 (1994) 158.
JU. V. Nadiach, in “Progress in Surface and Membrane Science”, Vol. 14, edited by D. A. Cadenhead and J. F. Danielli (Academic Press, New York, 1981) p. 380.
T. Young, Trans. R. Soc. Lond. 95 (1805) 65.
D. R. Lide (ed.) “Handbook of Chemistry and Physics”, 72nd Edn (CRC Press, Boston, 1991–1992) pp. 4–138.
V. P. Elyutin, B. S. Mitin and YU. S, Anisimov, Izv. Vyssh. Uchebn. Zaved, Tsventn. Metall. 17 (1974) 42.
E. Wolfram and R. Faust, in “Wetting, Spreading, and Adhesion”, edited by J. F. Padday (Academic Press, New York 1978) p. 213.
S. Kavesh, “Metallic Glasses” (American Society for Metals, Metals Park, OH, 1978) p. 36.
G. Inverarity, Br. Polymer J. 1 (1969) 245.
R. D. Reitz and F. V. Bracco, in “Encyclopedia of Fluid Mechanics”, Vol. 3, “Gas-Liquid Flows”, edited by Nicholas P. Cheremisinoff (Gulf Houston, TX, 1986) Ch. 10, p. 233.
R. E. Cunningham, L. E. Rakstraw and S. A. Dunn, AiChE, Sym. Ser. No. [180] 74 (1978) 20.
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Allahverdi, M., Drew, R.A.L. & Strom-Olsen, J.O. Melt-extracted oxide ceramic fibres — the fundamentals. JOURNAL OF MATERIALS SCIENCE 31, 1035–1042 (1996). https://doi.org/10.1007/BF00352905
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DOI: https://doi.org/10.1007/BF00352905