Title:
CERAMIC CASTABLE NANOMATERIALS
Document Type and Number:
WIPO Patent Application WO2004022502
Kind Code:
A3
Abstract:
A process for producing ceramic, or ceramic composite, components having microfeatures by creating a chemical reaction in a castable slurry to bond nano-sized or submicron-sized ceramic powders. The bonding process that gives coherency and strength to the material creates a reaction product or gel-phase resulting from a chemical reaction between the ceramic powder and a reagent, such as an acid, alkali, or inorganic salt solution, that binds the ceramic powder. This gel-phase can be de-hydrated, cured, or crystallized by a higher-temperature firing step, but at a temperature lower than the temperature range at which sintering starts to occur in the ceramic (typically lower than 1,000 °C).
Inventors:
NAIR BALAKRISHNAN G
WILSON MERRILL A
WILSON MERRILL A
Application Number:
PCT/US2003/027029
Publication Date:
May 13, 2004
Filing Date:
August 29, 2003
Export Citation:
Assignee:
CERAMATEC INC (US)
International Classes:
B28B1/00; B29C65/00; B29C71/00; C04B35/622; B32B3/00; B32B19/00; C04B35/111; C04B35/447; C04B35/63; C04B38/02; C04B; (IPC1-7): B29C65/00; B29C71/00; B32B19/00
Foreign References:
| US4574063A | 1986-03-04 | |||
| US4639388A | 1987-01-27 | |||
| US5858313A | 1999-01-12 | |||
| US6284682B1 | 2001-09-04 | |||
| US6660192B1 | 2003-12-09 |
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