Method for the forming of ceramic green parts

Details Method for the forming of ceramic green parts Method for the forming of ceramic green parts

1998-03-09

1999-09-07

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264299, 264651, B28B 114

Patent

active

059483350

ABSTRACT:
The well known slip casting process for the production of ceramic green parts, in which hardening is achieved by water removal with porous molds, is characterized by disadvantages in terms of strength, shrinkage during drying and problems with cracking during drying. The present invention avoids these disadvantages and produces ceramic green parts by changing the surface potential of powder particles in the slip instead of by removing water. Further more the coagulation strength is increased by adding polymers or extremely fine divided colloidal particles.

REFERENCES:
patent: 5273942 (1993-12-01), McCauley et al.

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