Ceramic manufacture for a composite ion transport membrane

Details Ceramic manufacture for a composite ion transport membrane Ceramic manufacture for a composite ion transport membrane

2002-07-31

2008-03-04

Huson, Monia A (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

C264S046400, C264S301000, C264S308000, C264S345000

Reexamination Certificate

active

07338624

ABSTRACT:
A method of producing a green form for use in manufacturing a composite, ceramic ion transport membrane is provided in which first and second ceramic powder mixtures are used to produce first and second layers of the green form. The first and second ceramic powder mixtures have ceramic particles and a pore former. After formation of each of the first and second layers or after formation of the second layer, heat is applied to burn out the binder and form pores. This heating is completed prior to application of a dense layer to prevent production of defects within the dense layer. The dense layer contains an ion transport material. Defects are also prevented by grading particle size from the first layer to the dense layer. This allows the second intermediate layer to fill in larger pores of the first layer and to present a smooth surface to the dense layer. Additionally, the second ceramic powder mixture contains in part material used in forming the dense layer for thermal expansion compatibility purposes.

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