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Cold isopressing method

United States Patent

February 25, 2003
View the Complete Patent at the US Patent & Trademark Office
A cold isopressing method in which two or more layers of material are formed within an isopressing mold. One of the layers consists of a tape-cast film. The layers are isopressed within the isopressing mold, thereby to laminate the layers and to compact the tape-cast film. The isopressing mold can be of cylindrical configuration with the layers being coaxial cylindrical layers. The materials used in forming the layers can contain green ceramic materials and the resultant structure can be fired and sintered as necessary and in accordance with known methods to produce a finished composite, ceramic structure. Further, such green ceramic materials can be of the type that are capable of conducting hydrogen or oxygen ions at high temperature with the object of utilizing the finished composite ceramic structure as a ceramic membrane element.
Chen; Jack C. (Getzville, NY), Stawisuck; Valerie M. (North Tonawanda, NY), Prasad; Ravi (East Amherst, NY)
Praxair Technology, Inc. (Danbury, CT)
09/ 668,249
September 22, 2000
STATEMENT OF GOVERNMENT RIGHTS This invention was made with Government support under DE-FC26-99FT40437 awarded by the Department of Energy. The Government has certain rights in this invention.