This paper will discuss in detail the various properties that can be quantified for a ceramic slurry and how they influence the ceramic shell. The raw materials (colloidal silica, polymer, refractory, wetting agent, antifoam) used to make a slurry play a major role in determining the overall final ceramic shell characteristics. There are many factors like silica type and level, polymer type and level, plate weight, solids loading, viscosity, flour particle size distribution, refractory type, etc that play a role on the final ceramic shell properties. These factors will affect the ceramic shell with respect to strength (green, hot, fired), permeability, creep, thermal conductivity, and thermal expansion.
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