If you mean what normal potters mean by ceramics then th.
How to harden ceramic.
Leather hard clay or moist clay does not slake well because it is not porous like dry clay is.
I actually make the clay that i and others nationwide use.
Part time at a foundation that produces clay for ceramic artists.
This will ensure that the piece is symmetrical over the base.
But i believe all of them use heat to create crystal structures.
It s an absolute chore to have to sharpen something that s harder than bone and steel thus requiring you patience and elbow grease as well as diamond sharpeners to ensure you re.
The trouble with sharpening ceramic knives isn t that it s impossible to do it s instead quite difficult to accomplish.
Be sure it has no plaster chips in it plaster causes pop outs when bisque fired.
There is no need to break up dry clay.
Ceramic is hard yet brittle so brace yourself.
Set the wheel to a low setting and use your hands to gently smooth and center the clay over the middle of the wheel.
To reprocess hard clay it must first be totally dry.
If you mean advanced materials science technical ceramics like for superconductors or space ships i am not sure.
Turn the wheel on slowly and tap the clay with dry hands.
If your clay seems hard continue kneading it until it is soft and pliable.