Patent ID: 6558613
Filing Date: 2003-05-06
Classification: C04B

Abstract:
A process for the production of a ceramic green part which comprises:providing a castable, aqueous slip having slip particles including particles selected from the group consisting of oxidic particles and non-oxidic particles therein, said slip particles having an oxide surface and a surface charge, wherein said surface charge is obtained by adding to said slip particles a material selected from the group consisting of an acid and a base; adding an active substance to the slip, wherein said active substance is a polymer with ester groups which is decomposable due to time delayed, temperature sensitive reactions; mixing and degassing the resultant slip; casting the mixed and degassed slip into a mold; thermally activating the resultant slip and waiting until decomposition products are formed, said decomposition products changing said surface charge of the slip particles leading to solidification, thus forming a wet ceramic green part; and demolding the wet ceramic green part.