pressure slip casting and cold isostatic pressing of aluminum titanate green ceramics: a comparative evaluation
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2013
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Abstract
Aluminum titanate (Al2TiO5 ) green bodies were prepared from mixture of titania and alumina powders with
different particle sizes by conventional slip casting (CSC), pressure slip casting (PSC) and cold isostatic pressing (CIP). Precursor-powder mixtures were evaluated with respect to the powder properties, flow behaviours and shaping parameters. Green densities were measured and correlated with the fractographs. A substantial increase in green densities up to 60 %TD (theoretical density of 4.02 g/cm3, calculated based on rule of mixtures) is observed with the application of 2–3 MPa pressure with PSC. While particle size distribution and solid loading are the most influential parameters in the case of CSC, with PSC pressure also plays a key role in achieving the higher green densities. Being a dry process, high pressure of > 100 MPa for CIP is essential to achieve densities in the range of 60–65 %TD. Slip pressurization under PSC conditions facilitate the rearrangement of particles through rolling, twisting and interlocking unlike CIP processing where pressure is needed to overcome the inter-particle friction.
| Reference Key |
papitha2013processingpressure
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|---|---|
| Authors | ;Ramanathan Papitha;Madireddy Buchi Suresh;Yebaluri Srinivas Rao;Bhaskar Prasad Saha;Dibakar Das;Roy Johnson |
| Journal | preventive veterinary medicine |
| Year | 2013 |
| DOI |
10.2298/PAC1304159P
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