Tape casting is a ceramic forming process used to make thin ceramic sheets.
In this method, a ceramic slurry is prepared using ceramic powder, solvent, binder, plasticizer, and additives.
The slurry is spread as a thin layer on a flat moving surface using a doctor blade.
The thickness of the sheet is controlled by the blade gap.
After drying, a flexible green ceramic tape is obtained.
This method is widely used for making thin ceramic substrates, multilayer ceramic capacitors, and electronic ceramic sheets.
Extrusion is used for rods, tubes, and long shapes.
Slip casting is used for hollow or complex shapes.
Plastic forming is used for plastic clay bodies.
Therefore, thin ceramic sheets are made by:
\[
\text{Tape casting}.
\]