Back to results
US 5,667,548 AGranted
Process for producing ceramic green compacts by double layer compression
AssigneesThomas Graule, Ludwig J. Gauckler
InventorsThomas Graule, Ludwig J. Gauckler, Felix Baader
Life of this patent
Estimating the term…
Abstract
The invention concerns the field of slip casting for producing green compacts. The disadvantage of state-of-the art slip casting is among others the need for removing the water through porous molds, the resulting shrinkage and the tendency of the green compact to form shrinkage cracks. These disadvantages are eliminated by internally coagulating by compression the double layer of solid slip particles, so that the green compact may be solidified without the need for removing the water.
Claims14
A process for the production of ceramic green bodies, comprising the steps of:
- providing a viscous slip comprising at least one of oxidic ceramic charged powder particles and non-oxidic ceramic charged powder particles, said non-oxidic particles coated with an oxide layer;
- and
- adding an active substance to the slip for decomposing the slip and forming ions for gradually altering the condition of the slip over time until the slip has solidified.
Dependencies are inferred from the claim text.