Slip casting refers to the filling of a mould, a negative
of the desired shape, with a slip consisting of a suspension
of micrometer size ceramic particles in liquid.
Schematic of the slip casting (drain casting) process
The capillary
action due to the pores in the mould withdraws the liquid
from the slip. As the liquid filters into the mould a
cast is formed on the mould surface. Stable slips with
high solids contents and low viscosity's can be prepared
by careful adjustments of the chemistry of the slip by
adding deflocculants.
Slip
casting mould
Assembled Slip
cast mould ready for pouring
Sintered slip cast
component illustrating the shrinkage from the original
mould dimensions
