| US 7,387,755 B2 | ||
| Method of making a ceramic composite | ||
| Jack C. Chen, Getzville, N.Y. (US) | ||
| Assigned to Praxair Technology, Inc., Danbury, Conn. (US) | ||
| Filed on Mar. 21, 2005, as Appl. No. 11/83,945. | ||
| Prior Publication US 2006/0208377 A1, Sep. 21, 2006 | ||
| Int. Cl. B29C 29/00 (2006.01) | ||
| U.S. Cl. 264—112 [264/241; 264/125] | 12 Claims |
| 1. A method of forming at least one ceramic layer on a substrate, said method comprising:
laminating at least one layer comprising ceramic particles onto a surface of the substrate;
the substrate being in a finished state and the at least one layer containing voids between ceramic particles; and
sintering the particles into a coherent mass, thereby to form the at least one ceramic layer, by heating the at least one
layer while simultaneously applying a pressure to the at least one layer in a direction normal to the surface of the substrate
until the sintering is complete;
the at least one layer being heated to a temperature that is below the pressureless sintering temperature of the ceramic particles
and the temperature being sufficient to allow movement of the particles upon application of the pressure to force the particles
into physical contact with one another and such that the voids are substantially removed.
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