The types of flow obtained during the formation of hemispherical domes are difficult to analyse. The aim in the present paper is to model ceramic paste flows in a press moulded ceramic dome with a simplified ‘top hat’ shape. The simplified process can be separated into a number of flows, each of which can be analysed easily. The rheological behaviour of ceramic paste in these flows is usually difficult to determine, since the materials are neither homogenous nor simple fluids. Models are presented to characterise the flows and validate them experimentally. Theoretical predictions are in good agreement with the experimental data.
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References
1.
HUANGX. and OLIVERH. R.: Proc. IchemE Jubilee Research Event, 333–336; 1997, Rugby, IchemE.
2.
HUANGX. and OLIVERH. R.: Br. Ceram. Trans., 1998.
3.
HUANGX. and OLIVERH. R.: Proc. IchemE Research Event; 1998, Rugby, IchemE.
4.
HUANGX.: ‘Rheology of ceramic paste’, PhD thesis, The University of Birmingham, UK, 1998.
5.
BENBOWJ. J. and BRIDGWATERJ.: ‘Paste flow and extrusion’, 1993, Oxford, Clarendon Press.
6.
BLACKBURNS.: Br. Ceram. Proc., 1993, 9–18.
7.
BLACKBURNS. and BöhmH.: Proc. Int. Conf. ‘Shaping of advanced ceramics’, 87–90; 1995.
8.
WHISKENSM.: ‘Flow of ceramic paste’, PhD thesis, The University of Birmingham, UK, 1997.
9.
BATESA. J. D.: ‘Radial paste flow’, PhD thesis, The University
10.
SCOTTJ. R.: Trans. Inst. Rubber Ind., 1931, 7, 169–175.
11.
COVEYG. H. and STANMOREB. R.: J. Non-Newton. Fluid Mech., 1981,8,249–260.
12.
JAZAYERIS. H.: ‘The influence of die geometry on the extrusion and properties of ceramic pastes’, PhD thesis, The University of Birmingham, UK, 1989.
