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| Slip casting is used to form ceramic shapes prior to sintering them at high temperature. The ceramic powder is made into a slurry (slip) with water and this is poured into a porous mould. The mould wall extracts liquid from the slip in contact with it, forming a compact green shape near the wall that contains unmodified slurry at its center. This slurry is poured out and the mould is opened to remove the green shape. |  |
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| The
adsorption of water by the mould surface is a relatively slow process,
and this technique is most suitable for production using multiple moulds.
Compaction of the ceramic powder is not high and the sintering step will
produce a porous component unless very long sintering times are used.
From: "Manufacturing with Materials," Edwards and Endean (Eds.), Butterworth (1990) |
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