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Factors Affecting the Extensional Flow of Crowded Suspensions for the Manufacture of thin Wall Ceramic Bodies

Published online by Cambridge University Press:  15 February 2011

James Greener
Affiliation:
Department of Materials Technology, Brunel University, Uxbridge, Middlesex, UB8 3PH, United Kingdom.
Julian R.G. Evans
Affiliation:
Department of Materials Technology, Brunel University, Uxbridge, Middlesex, UB8 3PH, United Kingdom.
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Abstract

Procedures for the manufacture of thin wall ceramic components from particulate suspensions using plastic forming methods which employ extensional flows are described. These include vacuum forming, blow moulding and film blowing. In order to understand how to select materials and to adjust the composition of such suspensions, the factors which control suspension rheology are identified. The measurement of extensional viscosity of ceramic suspensions is reported and compared with shear flow measurements.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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References

1. Thümmler, F., Euro, J.. Ceram. Soc., 6 139 (1990).Google Scholar
2. Evans, J.R.G., in New Materials and Their Applications, edited by Holland, D. (Institute of Physics, UK, 1990), p. 25.Google Scholar
3. Edirisinghe, M.J., Evans, J.R.G., Mats. Sci. Eng A. 109 17 (1989).Google Scholar
4. Haunton, K.M., Wright, J.K., Evans, J.R.G., Br. Ceram. Trans. J., 89 53 (1990).Google Scholar
5. Kobayashi, K., Furuta, M., Maeno, Y., European Patent 0034056, (19 August 1981).Google Scholar
6. Hammond, P., Evans, J.R.G., J. Mater. Sci. Lett., 10 294 (1991).Google Scholar
7. Cass, R.B., Ceram. Bull., 70 (3), 424429 (1991).Google Scholar
8. Chong, J.S., Christiansen, E.B., Baer, A.D., J. Appl. Polym. Sci., 15 2007 (1971).Google Scholar
9. Zhang, T., Evans, J.R.G., Euro, J.. Ceram. Soc., 5 165 (1989).Google Scholar
10. Petrie, C.J.S., Elongational Flows, (Pitman Press, London, 1979) p.36.Google Scholar
11. Trouton, F.T., Proc. Roy. Soc., A77 426 (1906).Google Scholar
12. Dealy, J.M., Polym. Eng. Sci., 11 (6) 433445 (1971).Google Scholar
13. Denson, C.D., Gallo, R.J., Polym. Eng. Sci., 11 (2) 174176 (1971).Google Scholar
14. Aken, J.A. van, Janeschitz-Kriegl, H., Rheol. Acta, 19 744 (1980).Google Scholar
15. Meissner, J., Stephenson, S.E., Raible, T., J. Rheol., 25 (1) 128 (1981).Google Scholar
16 Chatraei, S.H., Macosko, C.W., Winter, H.H., J. Rheol., 25 433 (1981).Google Scholar
17. Maerker, J.M., Schowalter, W.R., Rheol. Acta, 13 627 (1974).Google Scholar
18. Ferry, J.D., Viscoelastic Properties of Polymers, 2nd ed. (Wiley, New York, 1970) p.316.Google Scholar