Method for the forming of ceramic green parts
US6136241A · kind A · utility
5Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/632
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.